I accepted a security position at a hospital in the psychiatric ward. I was terminated after three days. HR representative told me I didn't understand their clientele. I have my own ideas as to why I was fired, but in the end I was devastated, and haven't been able to find employment since then, 18 months. I understand where you're at, I've been at my lowest point the last couple months.
I did accept a part-time position today as a custodian at a nature preserve. I wish it was full-time, but at this point I'm happy to accept anything I can get. I'm still at a very low point, but this job will definitely help my mental state.
I wish you the best. I know how hard this is for you. Please stay on the forum and let us know how you're doing. It's something I should have done, but didn't.