I am new here. I know where you're coming from. The feelings of desperation, burden etc can be so overwhelming.
My RSD/CRPS is confined to the right side of my body (so far). I've had it for 9 yrs now and there are days when it's a bit much.

Try to find a psycologist who will talk with you. Non-judgemental and willing to listen. I've been with a pain counselor for 1 1/2 yrs now and he has helped me so much. I can't do the pain meds because I'm anaphylatic so the counselor is all I have left to help.

A few things that have helped me are just a few simple things:
I knit if for only a few moments a day (it's my passion)
I listen to my favorite music
I smile if only for a moment
We have pets and they give me great solace

Hang in there.