Very interesting to read your story. I hope I can help in some way, and maybe it will help me as well since I have the same predicament in a way. Nothing seems to appeal so much that I would want to dedicate my life to it.
Have you considered Life Coaching? In a way, people would come to you who need help finding their way in Life, their career path and such. Wouldn't it be ironic if , being that you have trouble finding your own path, that you could make a career out of helping others find theirs? I've considered this myself as I have a nack for helping others get clear about their direction in life.
I don't know? You are pretty accomplished already from what I've read. Maybe setting up home coaching sessions, which will eliminate the cost of renting a space on your part, and you can feel comfortable in your own surroundings and make it comfy for your clients as well?
Hope this helps...it seems to be the only thing I can think of that would suit your disposition and skills.