How CAN I CHANGE MY PERSONALITY AND BECOME..?

i want to stop being shy,become confident,bold.outgoing,crazy(as in do crazy stuff),courageous, a bad ***(as in stick up for myself and the people around me,act without thinking of the consequences something like ROSE HATHAWAY or The roles angelina Jolie plays) and strong,Dont tell me not to change who i am and to just be me because i have putt my head on doing this and if you dont help me i will just do it anyway ,SO please help me