>>8237462Do some martial arts. I always found it was a great way to make friends, it's actually much harder to not make friends in martial arts classes. And it gives you a purpose. And if you are in a big city then there is probably enough gyms around to free trail your way through every martial art known to man
Also, if you really suck at it, unlike any team sport or even weightlifting, you'll get encouragement that you'll probably find nowhere else.
I wish I could do martial arts again