I sense depression coming, what do I do?

I got fired from the job that I love doing, so I took a part-time job doing something that I hate and doesn't pay much at all. I know I failed my accounting test that I took this week for my class, and I'm afraid to see the results. No girls want to date me. I refuse to go on antidepressants, all the side effects from psychiatric drugs make me sick. Recently I have been staying in bed until noon when I finally get up. What can I do to avoid from falling further down the slippery slope?
I sense depression coming, what do I do?
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