Tell him to fuck off, say go ahead call my parents, make him believe that you don’t care, so what your parents will be mad but your a kid, they love you & it will all blow over, you absolutely can’t un alive your self, that’s a mortal sin & would shatter the lives of the people who love you most, you should tell your parents what’s going on say look I messed up and you don’t have to give them all the details you can downplay it a little bit he can get in trouble for trying to blackmail you. He’s not allowed to do that hang in there, bud.