Most Helpful Guy
move out & find what makes you happy and lets you live your life how you want to live it.
decide to be a different person if you want. stay the same person if you want.
you can decide to do what you want.
perhaps look for a job at a place where you can meet people & have social interaction.
if you move out, then who will know what your past life has been like? view this as an opportunity to change and start new. go out, find things you like to do and just talk to new people about anything.
you already know what your issue is with your social anxiety. work on these issues. at the same time, do not let your anxiety be the main thing in your life. find something that keeps your mind off of it and it will start to go away.
fwiw I was always & still occasionally revert to my very introverted, reserved, quiet self. when I moved away I was miserable for several months. then I just decided that I wasn't going to live like that. I decided that even if I meet people and they reject me, I still had made contact with people and used it as a way to learn about my social awkwardness. I started making a couple friends and soon after this I had my first girlfriend. so it can be good to move out. just be sure to view it as an opportunity.