Aspirants can effectively revisit and revise previous topics by employing spaced repetition, which reinforces learning over increasing intervals. They should create a well-structured revision schedule that prioritizes weaker subjects while regularly including stronger topics for balance. Utilizing flashcards, summary notes, and quizzes can also enhance memory retention. Engaging with peer discussions or explaining topics to others can solidify understanding. Lastly, incorporating self-assessment techniques to gauge comprehension helps direct future study efforts effectively.