I have no children or family or significant other or anyone to keep me alive.

My answer to your question: hand on to the "live" part only because if you can get there it offers many more and better options than dying.

Dying will put an end to the constant pain. Living we have to suffer through the pain but with hope of it getting better and establishing a satisfactory or excellent life with happiness and people in it.

I an struggling right now in a partial hospital program with little hope but I'm working on faith that things might get better. I will admit I feel like I am failing at it right now, almost run out of steam to forge ahead.