Practice tests and mock exams both matter, but they do different jobs.
Practice tests build understanding
Use topic practice when you are still learning. It helps you repeat weak areas and read explanations immediately after each mistake.
Mock exams test readiness
Use mock exams when you want to check your overall level. A good mock exam mixes topics and gives you a realistic score.
Use both together
Alternate between topic practice and mock exams. Study weak topics after each mock exam, then test again when you feel ready.

