Hi brandonsmom, I'm not so sure anything I say will help but I at least just wanted to say I read your post and that I'm listening. I think it's good you are at least realizing what you are missing, and that you feel for at least that. It sounds like you have feelings about all these losses, and that's a start.
I personally have no desire to go back to my "former" life. Life where I had social interaction outside of one friend and work. While I was visiting my Dad, my stepmom was grilling me because she can't understand why I don't party, hang out with friends, have a boyfriend, or go shopping, blah blah blah. Others don't understand how completely careless I am that I am 22 and do not live the life of a "normal" 22 year old. I am ambivalent about almost everything now, not caring about the future or present.
I think it's a great start to WANT to be present in your own life.
You are in my prayers...