Yay! You learned how to use the correct form of you're!
By the way, by telling others "shut up you make teens and people in high school sound like we're all clueless and dumb," you are merely reinforcing the aforementioned argument.
"He found something that he wanted, had always wanted and always would want— not to be admired, as he had feared; not to be loved, as he had made himself believe; but to be necessary to people, to be indispensable."
-F. Scott Fitzgerald's This Side of Paradise