Can I chop off all my hair and become a punk?

Do you think my family would disown me if I just decided to rebel, skip school, start drugs and just hang out being cool and punky?
Ehh. Not that I really want to. Also, they actually wouldn't give a shit; my parents are far too laid back.
I have an absolute desire to make them angry, you know, like the average, angst-filled, against-the-world teenager. Honestly, I am failure to my name. Well, not to my name, but to my idealogical lifestyle. The whole philosophy I have going on, the one where I refuse to conform to any social norms and defy my role as a posh-privately educated-arrogant snob. That is a bit harsh, not everyone at my school is like that, in fact most of them are sluts who want to be famous and think they're are far more beautiful than they are. They also pretend not to care about their precious education, but cry if they get less than 80% on a test. Anyway, I want to move to a boarding school where I refuse to talk to any other students and just pretend that no one else is alive other than myself. Yes, I am slightly self-obsessed.
I actually don't want to hate people; they just make it so difficult for me. I have eventually come to realise that it might in fact be my own fault that I loathe the human race, and repel kind-hearted, normal people. Maybe if I wasn't, well, a lying bitch and just pretended to like people then they would become more tolerable. It's actually dreadful how every word that comes out of my mouth is a lie. If I say something honest to a person in flesh I am paranoid they will think I am utterly insane.
Fuck it. If I continue lying and screaming 90% of the time everyone will just continue to fall for my flawless facade. Not.