Having used these four rules myself during exam prep, I can attest to how transformative they are. Starting each study session by testing yourself without notes really jumpstarts my focus and highlights exactly what I need to review. I used to waste time passively reading, but actively recalling information kept the material fresh and improved my memory. Prioritizing the hardest topics in the first hour of my study sessions made a huge difference too. I realized my willpower dips later, so tackling challenging concepts first when I'm most alert helped me understand them deeply rather than skim over them. In the final days, mixing subjects and spacing repetition with flashcards prevented burnout and kept everything balanced. The mock exam under real conditions was a game-changer; it helped me identify weak spots and enter the actual exam feeling confident because I'd already experienced that pressure setting. Using apps that generate quizzes on difficult topics, as mentioned, also enhanced my preparation by reinforcing key points regularly. Overall, applying these rules created a structured, evidence-backed approach that turned stressful last-minute studying into a manageable and effective process.