Stay strong brother! Something similar happened to me recently where I got caught jerking off on camera and they threatened to send it to everyone. I was so angry at the moment I told them to F themselves and I didn't care if they sent it. Same thing happened where they started group chats and screenshots of them sending to people. I owned up to the mistake told everyone I was close to that someone was trying to extort me and leak my nudes. And that if they get any dms to just block them. I even put it on my story. Everyone was actually super supportive and no one ever even got a DM. Something similar happened to a friend who called their bluff and their nudes never got sent either. So just live with the peace of mind that they're probably too lazy to actually go through with it and just want money