You need to get a fresh start. I think regardless of the situation (although yours may be more extended), we all have a sense of guilt for "abandoning" people, but you have to realize that you can't help anyone unless you help yourself first. I do have my own story, but it's not something I want to publicly share, though I'd be happy to tell you over skype if you really want to know.
Bottom line is... you can stay around and try to fix things, but your chances for success are low. I have a philosophy in life: Never stay in a place where you're too happy or unhappy. Happiness brews complacency, and unhappiness breeds distrust and hopelessness. I don't know your skill set, but I'd suggest moving somewhere, working to save up, and then restarting your life. The hard part is getting past the loss of time.
Bottom line is... you can stay around and try to fix things, but your chances for success are low. I have a philosophy in life: Never stay in a place where you're too happy or unhappy. Happiness brews complacency, and unhappiness breeds distrust and hopelessness. I don't know your skill set, but I'd suggest moving somewhere, working to save up, and then restarting your life. The hard part is getting past the loss of time.