Hi birdyy
My question for you. Who says learning to swim at the age of 22 is not cool? Or you are too old to learn swimming . Please take this out of your mind . And if you want to learn to swim please do that. Your first step to feel little less lonely. I myself have learned swimming when I was 24 years old.
And same with gymming you don’t need to wait for anyone to join with you. Rather once you’l join gym and after when your friends will see you enjoying gyming they join with you .
So 2 things you can do that you want to do and that will definitely make you feel more fresh positive and will take the feeling of being lonely.
Its good that you want everything to be perfect. But like you gave your 8th grade example if it doesn’t turn out to be what you expected you muststill keep your hopes high for the result.

And because you are feeling lonely you must read this why spending time alone is a gift

http://www.magicalvibe.com/feeling-lonely/

Mishika 🙂