Perna identifies a really good place to start. You might think about whether you want to stay with the primary care doctor you have. I am in the process of applying for SSDI. What even got me started on that was that my doctor advised me to so so, and said he would be real supportive of me. The law firms generally ask you if you have a "supportive" doctor.

I'm sorry you are finding that no one will hire you. That is one of the most discouraging things in life to go through. I know that even getting a volunteer job is not like it used to be. The humane society where I live wants a lot of info on volunteers and it wants references. About the easiest thing to get accepted for right now is to volunteer to help in the upcoming presidential campaign for whichever party you might feel supportive of.