Where I sit, I dream for days

Yeah, moving around a lot is not really conductive to forming lasting friendships, so you shouldn't feel bad about that at all. I do have one piece of advice, and that's to possibly reevaluate your position on no coworker friendships, because coworkers can often turn into great friends. Maybe if you find yourself at a job where you feel more at home and like what you do you might be less adverse to the idea? I can see you being reluctant to connect to coworkers if you're in a job that makes you miserable, and sometimes even in a great job you just won't click with each other. The knitting group is a really great idea, though!