It's college, have fun but don't have "too much" fun else you won't be in college for very long. That first semester is really key for getting a feel of how you are going to adapt to college life. Don't be person that parties every night and slacks off in the classroom but also don't be that book worm that won't come out of his room and have a little fun once in awhile. The key is finding a good balance between school work and social life and a lot of freshmen struggle with that now that they are on their own and don't have the security blanket of having a structured schedule like you did in High School and living at home. No one is there to make sure you go to class and put in enough time with your studies and you are going to find out that most professors aren't going to pull you aside and let you know they are concerned about how you are doing in their class like a lot of high school teachers would.