Wild Thing, you write well. Have you considered freelance writing? Or blogging? You can get a lot of mental stimulation researching things, and now you don't have to go running around from library to library as I used to. You talk to people on the phone, editors, etc. It is really a lot of fun, and you get to make your own schedule. You do have to meet deadlines, though, so set it up in your own mind a few days early to give yourself breathing room. If the editor wants it on Monday, make sure you finish it on Friday. If you feel awful Friday, you have a couple of extra days to finish it up.
Contact me if you want more info. Sharon