What can I do: I'm a Junior Biology major and dreading going back to college.?

Yes you are right in putting in all this time and effort into a degree. All the hardwork will pay off in the end, don't you know? By the looks of it, you've got quite a few more years left in your education, and the sooner you getting it done, the earlier you will be able to settle down with a great career. If you want to be successful, you need to make sacrifices. Going out to party on the weekends does sound great, but it won't do you any good in the long run. Once you've earned a degree I'm sure that you'll have a good amount of free time to relax and be proud of your accomplishments. Your unhappiness does concern me though. If your heart is not in it then things won't go so well. You need to get your priorities straight! Find another study buddy to accompany you and review with you in the library.