HELP PLEASE. Resistant PTSD after struggling for 30 years with mental illness

Hello everyone. I have a long history of different sorts of mental illnesses. Anxiety, depression, OCD, and last but not least PTSD amongst others. I don't have health insurance, and I'm too ill to work, therefore I can't afford the usual rates of therapists. Throughout my life I was mostly unable to function properly, unable to work regularly or have a relationship. I actually was married for 2 years and that's it. I never had a relationship or even friends again.

A kind listener on this website told me that I can find a volunteer therapist to help me solve my problems, and recommended that I post my request here.

If anyone can offer me any help, guidance, or advice on how to find volunteer professionals who offer online sessions, I'd be most grateful.

Thank you in advance!