Pink, it sounds as if you also think that hospitalization might help. if that is what your pdoc and T advice, I think it's a good idea. You sound ready for help and it might be a bit of a respite where you won't have to feel afraid. You sound pretty confident about the faciity, but if it should turn out awful, you can just leave again. Also, the timing is in your favor now, with work and all. My opinion is to go for it, but opinions are easily given!
Let us know how it works out. Wish you the best.