Make my parents believe I'm a....(see more)?

How can I make my dad and mom believe I'm a spy. They think I'm a delinquent child. (14years/girl) so yeah, I'm not afraid to go in the woods and I am and have been capable of hot-wireing cars. Still. I just wanna scare them enough to just leave me alone and stop the b.s. About me being horrible. (I'm really not that bad) sO yeah, take it from there. Thanks! :)