Tips and Tricks
The first thing you can do is make friends with someone in class so you can share notes and start a study group together. Invite other people in class so you can all exchange notes, work on assignments, and prep for tests together. Make sure that you won't violate your college's dishonesty policy, though.
When you have equations that you have to memorize, write them on flash cards. Use them if you have time waiting for class to start, riding the bus, or during commercials on TV.
If you have a question, or something you do not understand, ask your professor, hopefully before taking a test or exam. Don't waltz in two days before the final exam. Go in as soon as you're having trouble with something. Instructors like to be asked questions; that's what they're there for. It tells them what they need to explain better, or what they're doing well on.
(And you just never know when you might get a study tip. Sometimes if something is really bugging you, your instructor might just let it slip that you don't need to know it for a test. It doesn't happen often, but once in awhile you can get lucky.)