I feel for you. I had that issueback in school. Don't hide in the corner. Find new people who accept you and can be part of all the fun things you want to do. Everyone wants to be accepted and validated.
This is an old quote that I think about when it applies: I hope it puts things in perspective that helps you.
There comes s point in your life when you realize
Who matters
Who never did
Who won't anymore
And who always will
So don't worry about the people from your past

There's a reason they didn't make it into your future!
Stay strong, be yourself and don't let others drag you down with negative thoughts.
Good luck.