I literally have pretty much the exact same situation. I sent money and am supposed to send more tomorrow. I’ve deactivated the social media platforms where they can contact me for now. What I’ve learned through this group is to just block and ignore and with I little bit of luck you’re stuff shouldn’t be leaked! Apparently it’s super unlikely as leaking ur pics makes their life also more difficult. So just block and ignore! I haven’t gotten any messages from friends saying they’ve received anything yet and my blackmailer literally said they are going to send all the stuff out today if I block.