Are you by any chance in an AA program, where you could get support from other people and to hang out with?

I filled my hole with spirituality(not religion). I read a book called "A New Earth" by Ekhart Tolle that helped me tremdously. I don't know if it would help you, but they usely have copies in half price books stores or you can get used ones on Amazon pretty cheap. There are a lot of other books that help you heal that hole. Wayne Dyer has put out several with the same theme.

My hole tends to come back if I get too busy and forget what I've learned to do to calm myself, so it is a slow process.

I may be off base for you but I hope you find healing.