I'm scared to get a job these days. Any ideas on what I should do?

I've lost all my unemployment benefits. I have no health insurance and no money. Working under the table one or two days at a time is all I've been able to do lately to pay the bills and rent, but even that's dried up.

I used to be a professional, worked full-time as a reliable employee. I got nothing but shit upon over and over and over again in ways both varied and unique. I was given on-call duty immediately after being hired and my phone did not stop ringing for the entire 2 years I worked there. To this day, I still jump when I hear a Nextel phone ring. Needless to say, I do not wish to return to the industry I left. The job was lost because the company was sold, not due to anything I did.

I've been severely depressed for about 4 or 5 years now. Tried 4 different antidepressants via friends and family, none of them worked on me. The side effects didn't help either. I've had suicidal thoughts for about the last two years and sincere homicidal thoughts about my old bosses since I lost my job. A local mental crisis center doc says I have MDD, PTSD, BPD and possibly ADD. Last pill I tried was Celexa, (from the local free mental health crisis clinic) which made me feel like shit for at least half the day when I took it. I quit taking it. I've never had health insurance and I don't have a regular doctor. I've never seen a doctor for mental health issues until lately, and due to a general lack of money I cannot get treatment for any of it anywhere locally.

I know the only answer is to bootstrap myself into a job somehow, but my current mental state regarding unfair work practices really worries me. If I do get a job and somebody fucks me over again, I'm not going to walk away and cry in the corner about it. I'm going to make the motherfucker swallow his or her own front teeth, if not worse. My tolerance for douchebaggery has reached its limit. Period.

What should I do, as an unemployed single guy in this day and age? Obviously, raging on some fool and going to jail won't help anyone...