What did you go to graduate school for? Any interest in pursuing another graduate degree in a different field? I did that. I got a masters in one field, tried that field for 5 years and didn't get a full-time job from it, so now I'm in another field entirely, just in the beginning of my grad program. I had to drop my 2nd course, my 2nd semester in my new grad program b/c I had to deal with the stress of putting my mother in a nursing home, while looking for a place to live, while waiting for my grad school refund money since I had not been working for the past year b/c I was taking care of my mom 24/7. Super duper stressful! Then I found a roommate situation temporarily for July-Sept. until I get my next grad school refund and take my 2nd class (I petitioned to have the 2nd class dropped which was approved by the university's board). Now I'm starting over....AGAIN.

Starting over SUCKS. I've been unemployed for longer than 3 years but I had the good fortune (sort of) to live with my mother in our family home before she sold it. But, I still suffered from debilitating depression like you're suffering from right now -- the kind where you don't even want to get out of bed depression.

The only way I got out of it, was through temp work -- sporadic as it was -- it got me out of bed and back into "life." I joined a church (this was before I became an Athiest -- long story there), met people, joined Meetup, met people and got back into a social life.

I think your university or college has a career counseling department, doesn't it? A career center? I would email or call them, and tell them you want to be connected to former students -- there is an alma mater network where former students help current or recent graduates from the same university or college to find a job again. Doesn't matter that you've been unemployed for 3 years. You have to change your "narrative" on your resume and the story you tell temp agencies etc. A mentor can help you do that. That's what you need: a job mentor. That will help you get back into the work-life-game. It's a chance, anyway.