I don't think that Miley has anything psychologically wrong with her. I think that she's just going through that classic "I'm not a Disney kid" battle that many girls before her went through also. Britney Spears and Christina Aguilerra both went thorugh their raunch phases to prove to the world that they weren't teeny boppers anymore. Britney even went so far as to do the "I'm not a Girl Not Yet a Woman" song. I think the big difference is that other people who have gone through that have had the talent and artistry to find a new voice and make people take notice. Miley seems to be showing the world that if her dad hadn't been around to get her a TV show (which he needed to help his own career) that she never would have been in the spotlight.