What is an efficient way to study for a test/exam

Take 2 hours out of your day to look over notes/ work on problems, tutoring also helps. Put yourself in a room that's silent thay way no distractions also make sure you take 5 minutes breaks so your brain doesn't overheat

Set goals for yourself and don't study it all in one day. study over a course of time and give yourself rewards when you study for a set amount of time.