I want to dye my hair black but family would freak?

I am 21 so its not like i can't. I have pale skin and want that awesome contrast. I like emo/screamo music and just wanna express myself….i also wanna dress different…..wear more skinny jeans, bright colors, studs, lipstick, i just dont know if my family or friends will accept me that way so i choose to not do this. What can i do to stop caring what other people think?