Help with avoiding depression swings?

For years I’ve been battling with depression and a severe failure to acknowledge that I might turn out to be one of those old lonely guys that live on your street. I’ve been seeing psych’s that method didn’t help, I’ve been trying to hang out with friends and that doesn’t help (Most time they either ditch me or they kinda ignore my calls), and I have no family support. I know one part of my problem is that I’m not attractive at all so I can’t even think of the other sex. I’ve been trying to occupy my mind with medial tasks so that I won’t feel soo crappy. I need help, cause nothing else works…