Series: How to Prepare For — Global Examination Performance Edge Articles
Article P021
The learner has one place where everything works.
One topic feels fast.
The questions are recognisable.
The methods are familiar.
Marks arrive.
Confidence rises.
Then the paper moves on.
The next topic is slower.
The next one requires prompting.
The next one is partly remembered.
The next one cannot be started independently.
One peak sits inside a broad field of uncertainty.
This is the defining problem of uneven examination readiness.
The learner is not globally weak.
That matters.
The strong topic is evidence that the learner can build real competence.
But the exam does not usually award marks only inside the learner’s favourite island.
The whole paper still has to be crossed.
This article owns that edge condition.
It follows How to Prepare for an Exam When You Don’t Know What You Don’t Know | Find the Blind Spots Before They Become Lost Marks. Once blind spots become visible, one common pattern appears: one or two areas are genuinely strong while the rest of the readiness map remains amber or red.
It also connects to How Bottlenecks Work, How to Improve Exam Grades, How to Plan Properly | Find the Critical Path Through What You Need to Learn, and How to Prepare for an Exam When You Are Behind. Those pages own the broader bottleneck, grade-conversion, critical-path and late-triage mechanisms. This page owns a narrower question:
What should a student do when one part of the subject is already strong but the overall examination remains weak because readiness is too uneven?
The 50-second answer
When one topic is strong but the rest are weak:
- Do not abandon the strong topic; move it into maintenance.
- Do not spend prime revision time polishing it further just because it feels productive.
- Map the rest of the syllabus by exam value, connectivity and current readiness.
- Identify foundational topics that unlock several downstream areas.
- Build a minimum viable floor across every major examinable domain.
- Use diagnostics to separate true knowledge gaps from retrieval, interpretation, method-selection and timing failures.
- Allocate more time to high-value amber topics that can become reliable quickly.
- Repair catastrophic red gaps that could collapse whole sections.
- Use the strong topic as a model: analyse what made learning succeed there.
- Transfer the successful routine only where the mechanism fits.
- Mix topics before the exam so switching and method selection become normal.
- Judge progress by the whole-paper floor, not by the best-topic ceiling.
The central rule is:
Preserve the peak. Build the floor.
Alicia, Tricia and Kai Kai have the same favourite topic
All three are excellent at one chapter.
Alicia keeps practising it because it makes her feel prepared.
She can now complete almost every question in that topic.
Tricia knows she is weak elsewhere, so she stops touching the strong topic completely and spends all her time on the rest.
Two weeks later, the strong topic has become slightly slower.
Kai Kai does something different.
She asks:
What job does the strong topic now need?
The answer is maintenance.
So she retrieves it briefly twice a week and keeps it inside mixed practice.
Then she looks at the rest of the paper.
She finds that three weak topics all depend on one foundational skill.
She repairs that first.
Two topics move from red to amber together.
Then one high-value amber topic becomes green with a small number of focused drills.
Her strongest topic barely improves.
Her total paper score rises sharply.
That is what portfolio thinking looks like in examination preparation.
What this article owns
This article owns uneven-readiness repair at the whole-paper level.
- Strength preservation: keeping the strong topic available without over-investing in it.
- Floor construction: creating minimum viable competence across the rest of the examinable domain.
- Allocation: moving study time toward the highest expected mark return.
- Dependency repair: identifying foundational weaknesses shared across several topics.
- Portfolio balance: improving the whole examination rather than maximising one local strength.
- Routine transfer: learning from what worked in the strong topic without assuming the same method fits every domain.
- Mixed performance: switching among topics and methods under realistic exam conditions.
- Reliability: raising the weak-topic floor until the paper becomes less dependent on favourable topic distribution.
First principle: the strong topic is an asset, not the problem
Do not treat strength as wasted time already spent.
The strong topic provides:
- reliable marks;
- confidence evidence;
- a model of successful learning;
- a possible foundation for connected topics;
- a place where exam execution can be observed under lower cognitive load.
The question is not whether to keep it.
The question is how much maintenance it needs.
The maintenance threshold
A topic can move from build mode into maintenance when it is:
- retrievable without notes;
- accurate on fresh questions;
- stable after delay;
- reasonably fast;
- robust across changed surface forms.
Once those conditions are present, reduce volume.
Second principle: strong-topic overpractice can become opportunity cost
The favourite topic feels productive because progress is visible.
But the next hour may raise the score from 92% to 94% in that topic while another hour could raise a major weak topic from 30% to 55%.
The second hour may have greater whole-paper value.
Ask:
What is the expected mark return of this next hour?
The marginal-return test
| Study option | Current state | Likely improvement | Whole-paper value |
|---|---|---|---|
| Strong Topic A | Green | Small | Low-to-medium |
| Core Topic B | Red | Large if repaired | High |
| Topic C | Amber | Fast conversion | High |
Third principle: do not abandon maintenance
The opposite mistake is to remove the strong topic completely from revision.
Retrieval can decay.
Speed can fall.
Method selection can become rusty.
Keep brief spaced contact.
For example:
- one short retrieval set;
- one mixed question set;
- one fresh challenge question;
- one inclusion inside a timed section.
Maintenance should be cheaper than initial learning.
Fourth principle: map the rest of the paper by evidence
Do not use only chapter names.
For each major area, record:
- exam value;
- connectivity;
- current readiness;
- common error mechanism;
- estimated repair effort.
This converts “weak across the rest” into a more useful map.
The whole-paper matrix
| Area | Exam value | Connectivity | Readiness | Repair effort | Priority |
|---|---|---|---|---|---|
| Topic A | High | Medium | Green | Maintenance | Low |
| Topic B | High | High | Red | Medium | Immediate |
| Topic C | High | Medium | Amber | Low | High |
| Topic D | Low | Low | Red | High | Later |
Fifth principle: connectivity can matter more than chapter order
Three weak topics may share one missing prerequisite.
Repair the shared node first.
Examples:
- algebraic manipulation supporting equations, functions and calculus;
- proportional reasoning supporting several Science calculations;
- sentence control supporting editing and writing;
- source inference supporting multiple Humanities tasks;
- core definitions supporting Economics analysis.
The paper may appear to contain many weaknesses.
The learning system may contain fewer.
The dependency trace
For each weak topic, ask:
What must already work before this can work?
Then compare answers across topics.
Repeated prerequisites deserve early attention.
Sixth principle: build a floor before building a second peak
Students often respond to uneven readiness by choosing another favourite topic and making it strong.
That may create two peaks and leave the same broad vulnerability.
Instead, first establish minimum competence across major areas.
The floor may be modest:
- can start representative questions;
- can retrieve core knowledge;
- can avoid catastrophic misconceptions;
- can earn basic and intermediate marks;
- knows the main method-selection cues.
Once the floor exists, deepen strategically.
Seventh principle: amber topics can be high-value conversions
A topic that is partly working may yield marks quickly.
For example, the learner understands the concept but:
- forgets one condition;
- confuses two methods;
- is slow with one step;
- misreads a command word.
A small repair can move the topic from unreliable to useful.
Do not ignore amber while chasing dramatic red topics.
The amber-conversion question
Ask:
What single change would make this topic reliably attemptable?
If the answer is small and the topic is high-value, prioritise it.
Eighth principle: red topics need classification
Not all red topics are equally red.
Red can mean:
- never learned;
- learned but forgotten;
- recognised but cannot retrieve;
- understood but cannot apply;
- can apply only with labels;
- cannot finish under time.
Each state needs a different repair.
Ninth principle: some red topics are too expensive to perfect
If the exam is close, one large low-frequency topic may require many hours for limited expected return.
Build minimum viability.
Learn the core concepts.
Secure accessible marks.
Do not demand mastery everywhere if time does not permit it.
This is triage, not surrender.
Tenth principle: study allocation should be dynamic
Once Topic C moves from amber to green, reduce its allocation.
Once Topic B moves from red to amber, adjust again.
Do not follow a fixed timetable after the readiness map changes.
The study plan should react to evidence.
The allocation loop
Diagnose → allocate → repair → retest → reallocate.
This loop continues until the exam or until the portfolio becomes sufficiently stable.
Eleventh principle: copy the success mechanism, not the surface routine
The strong topic may reveal useful learning principles.
Maybe it became strong because the learner:
- practised frequently;
- received fast feedback;
- worked examples before independent problems;
- used spaced retrieval;
- understood the underlying logic;
- solved many mixed variants.
Those principles may transfer.
The exact surface routine may not.
The mechanism extraction
Ask:
- How did this topic become strong?
- Which part was explanation?
- Which part was practice?
- Which part was feedback?
- Which part was repetition?
- Which part can be reused elsewhere?
Twelfth principle: favourite-topic success may reflect prior knowledge
Do not assume the study method alone created the strength.
The learner may have:
- stronger foundations;
- more prior exposure;
- greater interest;
- better teaching;
- more practice opportunities.
When transferring methods to weak topics, account for different starting states.
Thirteenth principle: interest is useful but cannot own the schedule
Students often spend more time on topics they enjoy.
Interest can sustain deep practice.
But exam allocation must also reflect marks and weakness.
Use interest as energy.
Do not let it become avoidance.
Fourteenth principle: confidence should follow domain coverage
Being excellent at one topic can make the learner feel globally prepared.
This is especially dangerous if the strong topic dominates recent practice.
Use a coverage matrix.
Confidence should reflect the whole examinable field.
Fifteenth principle: whole-paper weakness may be a switching problem
Sometimes each topic is acceptable in isolation.
The paper becomes weak because the learner cannot switch methods efficiently.
Use mixed practice.
Remove labels.
Train classification.
Ask:
What kind of problem is this, and why?
Sixteenth principle: whole-paper weakness may be a time-allocation problem
The strong topic may attract too much time during the exam.
The learner enjoys it, writes more, checks more and enters weaker sections late.
Strong topics must still obey the paper clock.
Use mark-weighted timing.
The favourite-topic timing trap
A student can lose overall marks by overperforming where they are already strong.
If a ten-mark question receives twenty-five minutes and a later ten-mark question receives five, the strong topic has become a resource-allocation problem.
Seventeenth principle: secure marks should be collected efficiently
Strong-topic questions should become relatively cheap marks.
The learner should answer accurately without unnecessary expansion.
Save reserve for less stable areas.
Eighteenth principle: weak topics should not automatically be attempted last
Putting every weak area at the end may create a bad interaction with fatigue and time pressure.
Use the paper rules and section structure.
Where question order is flexible, choose a sequence that balances confidence, marks and time rather than always postponing weakness.
Nineteenth principle: basic marks across weak topics accumulate
Suppose five weak topics each contain ten accessible marks.
Improving from three to six marks in each adds fifteen marks overall.
This may be easier than pushing one strong topic from nine to ten marks repeatedly.
Portfolio gains matter.
Twentieth principle: do not define a weak topic by its hardest questions
A learner may say:
“I am terrible at this chapter.”
But the evidence may show:
basic questions are correct;
intermediate questions are partial;
only advanced applications fail.
That topic is not red everywhere.
Build from the existing floor.
The difficulty ladder
For each weak topic, test:
- core definition or principle;
- basic application;
- standard exam question;
- mixed/unfamiliar question;
- high-difficulty variant.
Locate the first failure.
Twenty-first principle: the first failure defines the repair layer
If the definition is missing, teach the concept.
If the concept is known but standard application fails, practise the procedure.
If standard application works but mixed questions fail, train selection and transfer.
If everything works untimed but not timed, train fluency and pacing.
Do not start with the hardest layer automatically.
Twenty-second principle: use micro-drills before full-topic marathons
If one operation causes repeated failure, isolate it.
Examples:
- factorisation;
- unit conversion;
- quotation integration;
- graph interpretation;
- evidence selection;
- formula rearrangement.
Repair the component, then return to full questions.
Twenty-third principle: retrieval gaps need different treatment from understanding gaps
A learner may understand the topic during teaching but fail in the exam because the knowledge is not retrievable independently.
Use closed-book recall, flashcards where appropriate, blank-page reconstruction and delayed retesting.
Do not re-teach everything if retrieval is the real problem.
Twenty-fourth principle: use interleaving once basic competence exists
Do not mix everything too early if several topics are still completely unlearned.
First build a usable method.
Then mix.
Interleaving is especially valuable when the exam requires method selection among neighbouring topics.
Twenty-fifth principle: broad weakness can hide one reading problem
If the learner misunderstands command words, scope or data displays, several topics may appear weak.
Check whether the same question-reading failure repeats across domains.
A general interpretation repair can raise multiple topic scores.
Twenty-sixth principle: broad weakness can hide one algebra problem
In Mathematics and quantitative subjects, algebraic weakness can contaminate many topics.
The learner may understand the topic conceptually yet lose marks downstream through manipulation.
Trace the first wrong line.
If several topics break at the same algebraic operation, repair the shared foundation.
Twenty-seventh principle: broad weakness can hide one writing problem
In essay-based subjects, several content areas may appear weak because paragraphs lack:
- clear claim;
- evidence;
- analysis;
- judgement.
If the structure fails everywhere, the problem is not only topic knowledge.
Train the transferable writing mechanism.
Twenty-eighth principle: broad weakness can hide one data problem
Students may know the science or economics but lose marks whenever a table, graph or source appears.
Then the cross-topic weakness is evidence interpretation.
Train data reading directly.
Twenty-ninth principle: broad weakness can hide one confidence-control problem
The strong topic feels safe.
The weak topics trigger hesitation, overchecking or abandonment.
Practise graded exposure to weak-topic questions under bounded time.
The aim is not to make the learner “feel confident” first.
The aim is to build evidence that a usable route exists.
Thirtieth principle: strong-topic success can be used as a psychological anchor
When a learner believes they are “bad at the whole subject,” the strong topic disproves the global claim.
Use it carefully.
Say:
There is already evidence that you can build competence here. Now we need to understand which conditions made that possible and recreate them across more of the paper.
This is more precise than generic reassurance.
Thirty-first principle: progress should be measured by topic distribution
Track how many major areas are:
Green.
Amber.
Red.
Untested.
The goal is not necessarily to make everything green.
The goal is to reduce red, expand viable amber and preserve green.
The distribution dashboard
| Status | Week 1 | Week 2 | Week 3 |
|---|---|---|---|
| Green | 1 | 3 | 5 |
| Amber | 4 | 5 | 4 |
| Red | 6 | 3 | 2 |
| Untested | 2 | 2 | 0 |
Thirty-second principle: whole-paper mocks should come after targeted repair
If the learner is broadly weak, full papers every day may repeatedly expose the same problems without repairing them.
Use targeted blocks.
Then run a paper to test integration.
The full mock asks whether the repaired topics survive switching, timing and fatigue.
Thirty-third principle: do not wait until everything is fixed before simulating
The opposite error is delaying all mocks until every topic feels ready.
That may never happen.
Use periodic whole-paper tests to update the map and timing plan.
Targeted repair and simulation should alternate.
The repair-simulation cycle
Diagnostic → targeted repair → mixed retest → timed section → full simulation → new diagnostic.
Thirty-fourth principle: use marks recovered, not hours spent, as one planning lens
A topic consuming five hours but recovering two marks may be lower priority than another consuming ninety minutes and recovering six.
This estimate is imperfect.
But it forces opportunity-cost thinking.
Thirty-fifth principle: maintain the strong topic under changed conditions
Do not only repeat familiar strong-topic questions.
Use:
- one unseen variant;
- one mixed question;
- one timed item;
- one delayed retrieval.
Strong should mean transferable, not merely familiar.
Thirty-sixth principle: use the strong topic to test exam technique
Because content load is lower, the strong topic is a good place to practise:
- time discipline;
- answer brevity;
- checking hierarchy;
- submission procedure;
- calm start.
Then carry those routines into weaker sections.
Thirty-seventh principle: know when the strong topic is becoming over-polished
Signs include:
- doing only difficult extension problems while core weak topics remain untouched;
- repeating questions already mastered;
- spending long periods improving elegance rather than marks;
- using the strong topic to avoid uncomfortable revision.
At that point, cap the time.
Thirty-eighth principle: cap maintenance time deliberately
Example:
Strong topic receives 10–15% of available subject time.
Weak high-value topics receive the majority.
The exact percentage depends on the exam, time remaining and decay risk.
The principle is fixed allocation discipline.
Thirty-ninth principle: use weighted priorities rather than equal chapter time
Equal time per chapter feels fair.
It is often inefficient.
Topics differ in:
- marks;
- connectivity;
- weakness;
- repairability;
- frequency.
Weight accordingly.
Fortieth principle: do not overfit to past-paper frequency
A rarely tested topic can still appear if it is inside the official specification.
Use frequency as one signal.
Use the syllabus to define the domain.
Do not create blind spots by studying only historical popularity.
Forty-first principle: build minimum competence in low-frequency topics
For low-frequency topics, the goal may be:
- recognise the task;
- retrieve the core rule;
- earn accessible marks;
- avoid catastrophic misconception.
That can be enough to protect the paper floor.
Forty-second principle: topic strength should be independent
If the learner is strong only with one teacher’s worksheet style, test elsewhere.
If the learner is strong only when the topic is announced, mix it.
If the learner is strong only with notes, close them.
Independence is the exam standard.
Forty-third principle: build cross-topic bridges
Ask how the strong topic connects to weaker ones.
Sometimes a familiar concept can provide the bridge.
Examples:
- graphs connecting algebra and functions;
- energy connecting several Physics topics;
- cause and consequence connecting History themes;
- evidence and inference connecting reading tasks.
Use existing strength to make new material less isolated.
Forty-fourth principle: avoid false transfer
Not every strong-topic method belongs elsewhere.
A strategy that works in one domain may fail in another.
Ask why the method works before transferring it.
Copy principles, not rituals.
Forty-fifth principle: identify the examination minimum for each weak area
For every major weak topic, write:
Minimum useful competence:
- what must be recognised;
- what must be retrieved;
- what standard method must be executable;
- what common error must be avoided.
This creates a concrete floor-building target.
Forty-sixth principle: use low-stakes retrieval to keep the portfolio alive
Once several topics become green, use short cumulative retrieval to prevent decay.
The aim is to maintain breadth while continuing deep repair elsewhere.
Forty-seventh principle: the portfolio should become more mixed as the exam approaches
Early:
targeted topic repair.
Middle:
mixed-topic sets.
Late:
timed sections and full papers.
This progression moves from building parts to operating the whole machine.
Forty-eighth principle: the final paper should not depend on favourable topic distribution
A learner is vulnerable if they need the exam to contain lots of the favourite topic.
Preparation should reduce that dependency.
The goal is not equal strength everywhere.
The goal is a paper that remains viable under different representative topic mixes.
Forty-ninth principle: the floor is visible in the weak-topic score
Track not only total marks but the lowest major section or topic result.
If the lowest domain rises from 20% to 50%, reliability may improve dramatically even if the best domain stays at 90%.
That is often the most important movement.
Fiftieth principle: whole-paper competence is a distribution, not a highlight reel
The examination does not average your favourite examples.
It samples across a domain.
Preparation therefore has to manage the distribution of competence.
One beautiful peak is useful.
A stable floor is what makes the whole paper work.
The 14-day uneven-readiness runway
Days 14–13: map the paper and classify every major topic.
Days 12–11: identify shared prerequisites and repair the highest-connectivity red gap.
Days 10–9: convert one high-value amber topic toward green.
Day 8: maintenance retrieval for the strong topic plus mixed set.
Days 7–6: repair the next major red/amber cluster.
Day 5: timed mixed section.
Day 4: full representative paper.
Day 3: classify remaining whole-paper weaknesses.
Day 2: targeted final repair and cumulative retrieval.
Day 1: light maintenance, taper and logistics.
The 7-day uneven-readiness runway
Day 7: whole-paper map.
Day 6: highest-connectivity repair.
Day 5: high-value amber conversion.
Day 4: mixed topic practice.
Day 3: timed section or paper.
Day 2: repair the largest remaining weak area while maintaining the strong topic briefly.
Day 1: taper and retrieval.
The 3-day uneven-readiness rescue
If little time remains:
- protect the strong topic with one short retrieval set;
- identify the two largest high-value weak areas;
- repair one foundational bottleneck;
- convert one amber topic quickly;
- run one timed mixed section;
- review the error ledger and logistics.
Do not spend the final three days polishing the favourite topic.
Subject application: Mathematics
A student may be strong in geometry but weak across algebra, functions and statistics.
First identify dependencies.
If algebraic manipulation is weak, repair it before treating every later topic as a separate problem.
Keep the strong geometry topic alive with mixed questions.
Then move the majority of study time toward the shared mathematical foundations.
Subject application: Additional Mathematics
A learner may be strong in differentiation but weak elsewhere.
Ask whether differentiation strength rests on good algebraic fluency.
If yes, use that strength to bridge toward integration, coordinate geometry or function work.
If other topics fail at algebra rather than concept, the repair target is shared.
Subject application: Science
A student may be excellent at one Biology system but weak in Chemistry and Physics components of a broader Science course.
Do not assume the same memorisation routine will transfer.
Map whether the weakness is:
- conceptual;
- mathematical;
- data-based;
- experimental;
- retrieval-based.
Then allocate by mechanism.
Subject application: English
A learner may be strong in writing but weak in comprehension, editing and oral/listening components.
The strong writing component should move into maintenance.
Then diagnose the other components separately.
Do not use more composition practice as a substitute for inference, answer scope, grammar discrimination or listening evidence.
Subject application: Humanities
A learner may know one historical theme deeply but lack coverage across the rest.
Preserve the evidence and argument routine that worked.
Then build breadth.
Use timeline compression, cause-consequence maps and source-analysis drills across untested themes.
Subject application: Economics
A learner may be strong in microeconomics but weak in macroeconomics.
Maintain the strong framework retrieval.
Map missing macro foundations.
Build model conditions, causal chains, diagrams and evaluation gradually.
Then mix topics so the learner must identify which model applies.
Subject application: case-study exams
A learner may be strong in one framework but weak at broader case diagnosis.
Do not force the favourite framework into every case.
Train evidence-first diagnosis and multiple-framework selection.
Use How to Prepare for a Case-Study Exam for the dedicated owner.
Subject application: practical exams
A learner may be strong at one procedure but weak across other stations.
Keep the strong procedure in maintenance.
Map each weak station by setup, sequence, observation, recording and safety.
Repair the earliest weak stage.
The parent’s role
Parents can help prevent favourite-topic overinvestment.
Ask:
- Which topic is already strong?
- How much maintenance does it really need?
- Which weak topic has the highest mark value?
- Which foundation unlocks several areas?
- Is the lowest section improving?
Do not mistake visible enthusiasm for optimal allocation.
The tutor’s role
A tutor should identify whether broad weakness is actually several independent gaps or one shared bottleneck.
Then build the floor systematically.
Use the strong topic to observe what successful independent performance looks like for this learner.
Fade support as weaker areas become viable.
The teacher’s role
Teachers can help by showing the whole assessment architecture.
Students need to understand:
- how marks are distributed;
- which topics connect;
- which skills recur across chapters;
- where minimum competence matters most.
This makes broad readiness more visible than chapter-by-chapter completion alone.
The independence test
The learner is converting a peak into a stable paper when they can:
- maintain the strong topic with lower study volume;
- identify the next highest-value weak area;
- repair shared foundations;
- attempt every major section;
- switch among topics without labels;
- finish representative papers with fewer catastrophic weak sections;
- show a rising lowest-section score.
Return to Alicia
Alicia stops spending half her week on the topic she already loves.
She gives it a short maintenance slot.
Her total score initially feels less comfortable because more study time now occurs in weak areas.
Then the weak-area marks begin to rise.
The paper becomes less dependent on her favourite chapter appearing heavily.
Return to Tricia
Tricia restores light contact with the strong topic.
It remains green.
She no longer has to choose between protecting strength and repairing weakness.
Maintenance makes both possible.
Return to Kai Kai
Kai Kai sits a new paper.
Her favourite topic appears less than usual.
The old version of her preparation would have been vulnerable.
This time the rest of the paper holds.
Her peak is still there.
But the floor has risen underneath it.
The deeper lesson
Examination performance is not merely the sum of isolated topic mastery.
It is a portfolio.
The paper samples across strengths, weaknesses, transitions and time.
A single strong area proves capacity.
But the examination result depends on the distribution of that capacity.
This is why broad competence can outperform narrow brilliance in a broad assessment.
The strong topic should not be sacrificed.
It should become the anchor from which the rest of the paper is built.
What proper preparation finally means
Proper preparation when one topic is strong and the rest are weak means refusing both temptations.
Do not hide inside the strong topic.
Do not abandon it completely.
Move it into maintenance.
Map the rest of the paper.
Find the shared dependencies.
Repair the foundations.
Convert high-value amber topics.
Build minimum competence across the red zones.
Mix the topics.
Simulate the paper.
Track the lowest section.
Then continue until the whole examination is no longer held hostage by whether your favourite topic happens to appear.
Where to go next
If you are unsure where the broad weaknesses are, use How to Prepare for an Exam When You Don’t Know What You Don’t Know.
If practice scores remain unstable, use How to Prepare for an Exam When Your Practice Scores Are Inconsistent.
If time is short, use How to Prepare for an Exam When You Are Behind.
Next in this series: How to Prepare for an Exam When You Understand the Topic but Cannot Do the Questions | Repair the Conversion From Knowledge to Performance.
Final principle
One strong topic proves that you can build a peak.
Now make the rest of the paper climb toward it.
Preserve what works.
Repair what connects.
Raise the floor.
And turn one island of confidence into a whole examination that can carry your weight.