Help a college student

/prog/ I don't understand data structures very well and I have a test next week that will either make me or break me. I am usually a star student but something about me/data structures/teacher isn't right. I pay attention in class and take pages and pages of notes and every night I read the related material for at least 1-2.5 hours each and every night although I still find myself lost. Please give me advice on how I can better understand this subject.

Wow thanks everyone! And your points are taken, now I think I see where my fault was, I really do love CS it's sad how I didn't connect the dots and have fun with the languages instead of only doing class work. For being my first time in /prog/ you guys sure showed me not everyone here thinks they are on /b/ 24/7.