hello,
i would like change my profile name and email, is that available? if not should i start new account?
It is possible to change your email, simply go to your profile -> Account related settings.
Changing your name won't be possible unless you donate 10 BTC ( i believe ), or have a very good reason for theymos to do so.
Since you're currently a Jr member, it would probably be better to start a new account instead of going through that hassle ( or pay 10 BTC), as it most likely isn't worth it.