I fucked up. I started college for the wrong reasons, at the wrong time in my life, and without an end goal of my own, so I (mostly) failed out... slowly. My advice is only that you should actually have a personal reason to go. If you do, things will fall into place as you hone in on your target, even if the exact mark moves a bit. If you don't, you will still meet a whole lot of very interesting people and love the experience, but the vast majority of worthwhile programs expect your focus from day 1. Context and further explanation/justification omitted because it was getting long and too specific to be of any use to you, but I was Pre-Med, English Lit, Philosophy, and Computer Science. Things are easier if you start off with some kind of idea for a final goal.