You might be interested in the Pomodoro Technique. Basically:
and you just repeat that until you've finished, with longer and longer breaks. It's an interesting scheme and it works pretty well for a lot of people.
1. Set timer for 20 minutes
2. Do task
3. Take 5 minute break when timer rings
4. Set timer for 20 minutes again
5. Do task
6. Take longer break
Also, since you're a college student you might want to consider taking various legal drugs to enhance various aspects of your performance (called nootropics). L-theanine 400mg (suntheanine) + caffeine 100-200mg is cheap and provides a huge boost to performance. I use piracetam + choline, l-theanine + caffeine, and phenibut regularly and I've noticed that I get things done much quicker and my memory is very much improved.