Couple of things they can do to you: 1. Drag you out to gym or yoga twice a week, like a clockwork 2. Read "Feeling good" book - studies show it to be nearly as effective as therapy 3. Drag you to the doctor if the above does not work within the space of six weeks.
The other posts replying to you have good suggestions, too, but the vitamins + 5htp + exercise works for double-digit percentages within a week, in my experience - over the counter.
Good luck. Feel free to contact me if you need someone impartial to talk to.
Let somebody close to you know - so they drag you to the therapist when your really don't care any more. And, more importantly, so they can watch you when you take antidepressants.
Far from being the magic happy pills they're described as, there's a good chance they just turn you into a zombie who's feeling OK about not caring at all.