Let's see, caffeine sounds good, or have a friend keep you awake in class. Or, take a nice hot shower and get some water in your eyes to wash the sleep away.

Oh, and if you're going to college, you may want somewhat of a scholarship so you don't have to spend and assload of money on tuition. That should be motivation. Just unplug your TV, have your parents password protect your computer so you can't get on without them (yes, of course, there are those that can find ways around this), plain do your homework because there isn't much else to do, unless you have an unbelievable social life.

If anything else, do it for your parents. It must suck for them even more so then you because they think they failed in bringing you up (not a flame, just a statement), make them not think that.