I can get what you say, so that's the most important. =)
Yes, most of people are silly, at 12/13. And if you're not as silly as them, you're gonna be out of their mind. Whatever they think, you have to stay like you are, 'cause you're nice, clever, funny, and really likable. You're gonna manage to be happy, in your real life, for sure, and you're gonna amaze people.
=)
Salut Elodie ! =)