For everyone going to college for the first time, I second the comment that it's not that scary. Just be friendly, and if someone suggests doing something social, do it, even if you'd rather go back to your room and sleep or decompress. Everyone's in the same boat, so most people will be eager to make friends and fit into the new environment. Also, don't worry if you tire yourself out too much during orientation, as there generally aren't many assignments due the first week of class (unlike in high school, where work is often due each day), so you can catch up a bit on sleep then. (If your school already had orientation, then just try to meet people and socialize some during the first week or so of class, then buckle down and stay on top of your work.)
Essentially, you'll still be a student, just like you've been for the past 13+ years. If you haven't lived away from home before, that will take some getting used to, but it's a natural transition in the same way as the transitions from elementary to middle school or middle school to high school. It probably seems scarier or less certain, but you'll get through it well enough. And if you have trouble, personally or academically, ask around for help/resources sooner rather than later.
