What should I do when I'm feeling down in the dumps?

I’m a college student, no suprise there with feeling like poop already, but I’ve been feeling like crap lately, and I can’t seem to get myself out of my own funk. I try to go be active and walk around or what not, but then I lose the motivation and I seem to be in a constant state of autopilot. I go to class, work, eat sleep, see my boyfriend once a week barely (I go to school an hour away and I come back home every weekend). And for some reason, I have lost a lot of friends within the last couple of years of being here at school.

What helps get you out of your own funks?