Sorry to hear that. Two things that I've seen help, I mean actually help, are Cognitive Behavioral Therapy and for me reading great Stoic philosophers like Seneca and Marcus Aurelius. You have to learn to be comfortable in your own skin and love yourself or you will always feel bad. You are as valuable, indeed more valuable to yourself, as anyone on this planet from your perspective. Learn to love what you have -now-. If you live in the past and the future all the time you will always be miserable in the now. It may be trite, but it's as true now as it was 2000 years ago. I had almost this same converation with a friend last night who is tearing himself apart trying to keep his relationship together along with a crazy work schedule. Walk it all back, shut it down, and take care of yourself and your means of supporting yourself during a recovery. Volunteering to help the homeless on the weekends, helping someone else with projects, anything to get yourself out of the rut. If I can do it anyone can.