Dangerosa, that was an excellent point - even though it probably won’t be, assume college will be the hardest educational experience of your life. College, for me, is actually easier than high school - but a good part of the reason for that is that I got in the habit, very early, of acting and scheduling as if it were tremendously difficult. Thus, I was able to get my work done, get good grades, and still have plenty of time to make utterly laughable attempts to get laid.
Some other advice: There are some people, in addition to professors, you really really need to be friends with.
Some of those people are in the IT department. Trust me, there will come a time when you spill beer on your keyboard - or worse - or your roomate kicks your CD-ROM drive when it’s open and snaps the tray because he’s drunk, or something like that. When this happens, it is very useful to be on good terms with IT, so that you can wander in and ask - very politely - if you could borrow a keyboard or spare part. Keyboards, in particular, they’ll often just give you - IT always has a bunch of keyboards lying around from donated/junk machines. So at the start of the year, make a point of dropping by, learning people’s names, and volunteering to help out. They probably won’t let you volunteer in IT - my school won’t, for liability reasons - but the fact you offered will get you big points.
If you ever intend, even once, to consume alcohol in your dorm, or hang out with people in your dorm who are drinking, or even to let someone throw out a beer can in your room, make damn sure you’re on good terms with the RAs. Not just your RA - all the RAs in the building. Say hi to them when you pass in the hall. Ask them how their day is going. When they’re on lobbey duty and everyone else is at a concert, give them your leftover pizza. And always, always, always be polite. If you do all these things, RAs will try very hard to avoid busting you. Not that they’ll ignore their duty, but they’ll be less likely to check a bag you’re bringing into the building, for example, or to knock on your door because “the music is on too loud” and see the beer pong table. Little things like that, which don’t seem like much but add up to the ability to get away with a LOT of stuff you might not be able to otherwise. And if you do get busted, having an RA on your side, talking about what a “Good kid” you are can make a huge difference.
Finally, be friends with the cafeteria ladies. If your school doesn’t let you take food out of the cafe, they’ll be more likely to look the other way and ignore suspicious styrofoam trays you stole from the snack bar. And if you lose your student ID, having a friend in the cafeteria can keep you from being denied access and going hungry.
Oh, one more thing: if you can be the person who always helps the other students in your dorm with their computers, this can be very useful.