The best way to ace an exam is to become a teacher.

When I was in my first year of college, I thought that the best way to ace an exam was to memorize everything, but in a system where one professor teaches hundreds of students, it simply doesn't work. So, I did the opposite of what most students would think: I decided to become a teacher. You see, when you become a teacher, you don't memorize everything, you understand everything. You don't just read books, you read everything. I ended up getting a 4.0 gpa in my first year of college, and I'm repeating the same for my second year. New year, new me, same gpa. The best tip I can give you is to become a teacher.