You are actually not alone at all. There are a number of people here on PC who are in a very, very similar situation, myself included. That said, I am very sorry you are feeling so isolated.

Have you given any thought to maybe getting more involved here on PC? This is basically a giant support group, or a bunch of small ones--whatever. The bipolar board has been a source of tremendous support and comfort to me while I have been manic and psychotic, among having other issues, over the past several months. You might be surprised at how it makes you feel to be posting over there and helping other people out. Sometimes, I find that giving to others is actually the best medicine there is for me.

I hope you feel btter soon!