I Love ... Understanding

In school I really loved revision. It might sound crazy, but I loved it because I love being able to understand stuff, and when I had finished doing my revision and was about to walk into an exam, I could safely say I understood everything.

Unfortunately, this is no longer the case.

Revision is now despised - and I am trying to work on my attitude - because I still love understanding but revising no longer has quite the same effect it used to. My understanding will increase to an extent, but I can't say I understand everything when I walk into university exams.