Berries, I can so relate to everything you're saying. This is also why I don't have any advice. If I could figure out what to do to get better I'd tell you right away.
On the other hand it seems to me that you're doing great in fighting IT. A support group, a coffee, not giving in... These are all very difficult things to do and you're doing them. I think you're on the right way and I hope you find the strenght to go on like this. I so wish you to feel better, my friend In the meantime we're all here for you. Keep posting if it helps

Hugs