Time is getting in the way

prettyvisitors4

I started here this summer when I was working full time but I was staying at home with my family. I am a college student and now I am back at school with a full course load and an internship three days a week. I'm still eating fairly healthily so my weight has not increased at all since the summer, but I have very little time to exercise now, and the time I do have is taken up by homework and the need to relax from running around all the time. I'm really nervous I'm going to lose all the progress I've made. Help? Suggestions?