Set a clear practice scope
Choose an available subject bank appropriate to your syllabus. Decide whether the session is for revision or for assessment; asking for help changes what the score means.
Review all uncertainty
Record wrong answers, correct guesses and slow questions. Group them by concept, calculation, reading or source uncertainty.
Repair before repeating
Read the source, ask why the correct reasoning works and solve a different example. Repeating identical wording can hide a misunderstanding.
Check readiness honestly
Mix topics and use unfamiliar problems where possible. Confirm the real examination format from official notices rather than assuming a practice app is identical.