If you are like tens of thousands of other college students, you went back to (or started) school yesterday. Because yesterday was a Monday, that means that you probably received at least three, possibly more, syllabi for new classes. The best thing for you to do right now is to sit down with paper and a pen, take out your syllabi, and start the review process.
Once a student breaks the ice, so to speak, and purchases his or her first model term paper or other project, s/he understands just what an amazing help they can be. A time saver, a money saver, a sanity saver -- I've heard all of these kinds of comments and more in my many years in this business.
If you can afford it, take a few electives in college, even if you don't have to. Why? I'll tell you why. It's mostly what Kate was talking about yesterday, about how you never know when something in college will inspire you to think in an entirely new direction
You know what? You should write a poem. I'm serious. Poetry is good to write for a thousand reasons, least of which is because poems are assigned in English classes.
While there are still pools to swim in and outdoor parties to attend, prepare for school another way also. Make a list of probable challenges you will face in your different classes. By making a list, you can alleviate some of the anxiety you are surely already feeling about these things and more completely enjoy the rest of the summer.