If you want to be alone, and happy, then Iād step into another reality totally. Can recommend Frank Herbertās DUNE. But just about anything thatās long and interesting will work.
Then again, Iām the type who gets completely lost in books, it might not be the thing for you.
As someone who spent years in a depression spiral, I really feel the need to say, a vacation from people can be and probably is a good idea. A long term people free life style is not healthy, and will eventually fuck you up. And Itās damn hard to come back from. Now that thatās over, go be you, and just have fun with it. Or at least follow up on 'ol Pilgrimsmasters suggestion and have a good go at yourself.
You donāt have an introverted hair on your whole body do you? 