At the age of 12, I was much smarter than this. Being young is not an excuse for being immature. Do you think you just can run around hitting people that's much older than you, and keep defending yourself with "Don't hit people younger than you!"? Being grown up has nothing to do with age, it is an evolution as a person, something that comes with intellect, not specifically age. I have told many +20 years old people to "grow up".