Like Wild Coyote said, depression sucks, sorry you are depressed.
I feel like my bipolar traits make me more reactive to my environment so whenever I have been unemployed, under stress (finances, job) or without social support, I fall into a dark hole if it goes on too long. I feel high when life is good. Maybe the highs wouldn't be possible without the lows? What I despise most about being depressed is that I can no longer laugh. I absolutely love laughing with others or reading/watching something that makes me laugh.
Is my recollection correct that you live by yourself? Are you employed right now? I think having a job where you enjoy your coworkers is helpful though maybe I can only do that because I am not currently depressed and on a lot of drugs.
I hope you feel better soon.