I feel kind of the way you do, that close to moving into the woods and enjoying solitude. But the people in your life make you that much happier and I feel that if you don't have at least a few people in your life you can talk to, then you'll feel empty all the time. I find that talking to people who truly care about you will change your perspective on how lonely you truly are.
I tried going the therapy route and so far, I just don't like it. Unless a therapist can see into your soul, then how can they really know what's wrong? They may be able to address some issues, but you're the one that has to put the work in. I would suggest working on building strong social connections with people your own age or close to it. Find a common interest. Find your own group of geniune misfits.