The less you worry about what you're missing out on the happier you'll be. Focus on what you can and want to do.
TV and anime makes carefree socializing in high school look better than it is.
Colleee is usually a lot better time for socializing than high school, espicially if you're ambitious and nerdy.
Find other ambitious nerdy people that share the things you're excuted about. This will probably be much easier to do in high school.