Does real friends make you change who you are?

Okay, deal is that my friends have been trying to change me to someone I'm not. Or at least someone I don't want to be. They have tried to get me to try on different outfits and new jewelry. I have told them I don't like them, but they have just complimented how good they look on me. I'm sick of it. They have tried to make me change my music taste, my school rituals and the way I eat. What I do at home is none of their business, right? They are my friends, but even best friends keep secrets from each other. I think I have the right to do it too and it's not like I know everything about them, because they never tell me anything, because they are too busy complaining about my life-style! There's something about the way my friends treat me. It's with disrespect and disloyalty. They don't trust me to take care of myself. They think that the second I get home I start to do some crazy workouts and cut myself at the same time. It's not true, I don't do it. I mean, I self-injure, but I don't do it so very often anymore. Only when I really hate this thing that is happening to me! And it's none of their business what I do to myself either. I just think that every person on earth deserves to have a little privacy! =) peace out <3