first thing to do... join the club lol
Second, I agree with puzzclar a study schedule would help.
I try to break it down that I only do one or two of my classes a night, if I try to study all of them together I get sick of it and give up.
The college library is a good place to study too, once I get in there I always end up doing something. Or if you can find someone to study with it would be good too.