Welcome! Glad you've already been able to experience a few naturist destinations!
You know, it's weird. When I was your age, I actually had a much easier time socializing with strangers at resorts. The people saw a new face, noted my youth, and would go out of their way to say hello and to make me feel welcomed. Now? Nobody says a word unless I do first. haha.
Anyway, hopefully you make friends around your own age group while here!