The first step in enjoying college is to realize that classes are not that important. Although you are there to go to school, a typical student can get by with A's and B's by having a significant social life.
The second step is to make sure you have lots of friends. Friends provide fun and can also help you with your homework. A lot of time your friends will have taken the same class.
The third step is to go out on weekends. You will meet people in class and in the halls and such, but weekends is where you will have the most fun.