I think you know what you need to do already. You've recognised that you're not happy, and the lifestyle you're currently living is not sustainable. That's good. You've already made the first step. I think you need to start getting out and expanding your horizons. Join a group - hiking or whatever. Gaming groups if that's your thing. I'm not sure where you're based, but where I am Andy's Man's Club is an excellent resource. I think you'll be pleasantly surprised by how un-sucky people can be. What does a 'good life' look like to you?