I know it's cheesy and may seem like you're being an overachiever, but seriously, if you take five minutes either the night before, or in the morning to make a list of things to do it will help you immensely. There's something about being able to cross things off a list that makes a person feel accomplished and good about their day!
2. Get an early start.
I know it sucks, but seriously just get up earlier than you want to. Whether you decide to make a nice breakfast, workout, get some last minute studying in, or read, you will have time to wake up, get moving, and have some leverage on the day.
Get all your homework done RIGHT after class. If you do this, what you learned in class will still be fresh in your mind You can get it done and out of the way then have the rest of the day to do whatever else you please.
Eat a nice dinner, go for a walk, plan for tomorrow and relax. Try to get 8 hours of sleep (TRY) and start over tomorrow!