As my junior year is coming to a close, there are a lot of things that I wish I could go back in time and tell my freshman self. Here are a few of them:
Get Involved NOW.
The first thing that I would tell myself is to get involved immediately. I stayed in my dorm for most of my first semester. I was scared to be away from home, didn't know anybody and spent too much time worrying. My second semester and on, I branched out, got more involved in on campus activities, made friends, and, as a result, was much happier.
If you aren't enjoying all your general education classes, it's ok.
Everyone has to take the basics. English, math, history etc. There's a reason you pick a major. You pick a major because you are interested in what you are going to study. You might have to get through some classes you don't like or are not interested in, but it'll be ok. Soon you'll get into classes that really interest you.
Take some time to exercise
Of course everyone scares you with the freshman 15, so working out a bit won't hurt. Exercise to reduce stress! It will help you focus better in class and sleep better at night.
It's alright to miss home.
After all, you did spend 18 years of your life with your family. It's not embarrassing to be homesick. Chances are, a lot of people are. If you have a free weekend, go home to visit.
You don't have to be perfect
Nobody is perfect. All you can do is your best.