Xyzzy,
Boy do I know how you feel. As do most people here. I've been out for 15 years (am 39 now), and I STILL go through periods where I feel isolated and lonely---but I know it's just that ol' dub isolation, that superimposed "staying away from the world" crap they put on us as teenagers.
Do you have anyone outside that understands what you've gone through? If not, try therapy, try finding a support group for former cult members, try the university, try a book group,.. It's not as easy as when you were a dub because the world is diverse and we don't all speak that ridiculous drone hey call "unity" which is actually just conditional acceptance...but there are thousands of very cool, very understanding, very friendly people out here just waiting. It just takes some effort on your part.
Whatever you do, GET BUSY. Don't let the dub brain-programming use isolation to get you to think that somehow god is punishing you for what you've done....NOTHING COULD BE FARTHER FROM THE TRUTH...on the contrary, "the world is your oyster" now, so go get it!
Jay