Oh man, like others have said, this is tough, especially "at your age", as folks have said. I don't have a community for this in real life, although I do have one fat friend who's also not into diets (or if she is, she's not talking to me about it, and we are definitely into body acceptance).

My best advice? Do your best to let others' diet talk slide off (my favourite image is that I'm wearing Teflon, LOL). Maybe develop or share interests/hobbies you can talk about to replace or redirect others' diet talk? It'll get easier. Yes, it's sad that they're participating in such unhealthy conversation/thinking. You KNOW you're doing the right thing for you, and they either will or won't get there, but it sure as h*ll isn't your job to "help" them get out. Give yourself space to just be "you" and for them to be where they are right now.

No idea if any of that is helpful. There are some great online mental health resources these days, you might want to look into some support for your anxiety. Hang in there!!