Stropps, so sorry to hear your update. It must be exhausting for you. But like others have said, she has to take her meds (not that anyone can enforce that). I think we would all quite like to live on our own and do nothing, unfortunately, as a functioning adult, we realise that it's not possible (not least financially).
DD2 has informed me that she is going to have three sessions of counselling for social anxiety. I would have thought the school might have mentioned this to me? And I am not entirely convinced she needs it, as have seen no evidence of it at all of late - she took a friend's dog for a long walk the other day and said so many people stopped her to ask about the dog, and it seemed like a nice way to meet people. 
I still can't do anything right at work. I don't know if I am stupid, can't think quickly enough, or that my job is harder than anyone else's (and the fact that I am covering for two other people too). Or that they keep moving the gateposts (there is a lot of that too).
Monty - an ex boyfriend of mine plays the recorder professionally and is supposed to be the best recorder player in the world. 
On your DH, so many of our friends have split up for a variety of reasons in the past few years. There is some of men going off with a younger woman, but for a lot of it, it is that women simply not putting up with the shit from their H any more. Hmm.