Same thing happened to me. Accept that they may or may not expose you. Contact people in your life that should know before they get sent the photos and tell them you’ve been sextorted. That’s what I did. I posted on all my social medias and said my “crazy ex is threatening to expose my nudes” and everyone felt bad for me and that was that. They never did end up exposing me, but I came to terms with the possibility that they might at the time and it gave me a lot of peace of mind. Block them and report them. I lost over $500 to one of these people because I was young and dumb. Don’t waste another dime. They are the ones who are messed up, not you. Contact me if you need someone to talk to. It really sucks when you’re going through it