You are not alone. You are never alone. We are here for you and I'm sure there are others outside these forums who care about you.
I'm sure you've seen some beautiful wildlife when you lived in isolation. Even then you were not alone; you were and are still surrounded by life even if not human. If you ever feel alone because there is no other person around...look forward, look up, look down and you will see life all around you. It may not be able to speak to you or you to them but they are there surviving along side you.
Try to be like these non human creatures and live in the moment, not over thinking when you can help it. This is what I try to do.