Well obviously we all know who's the smartest, and not to mention the cutest, one here and that would be Sim. So just listen to her and to no one else.
But seriously Ron, just wait a little while until you completely forget about these things - such insignificant little things that have no importance whatsoever, and start thinking a little bit about the mere future.
My brother used to be a goth... up until he figured out how stupid it made him look. He also used to smoke, get wasted all the time (and not to mention put himself in danger like attempting to drive drunk) and basically do as many irresponsible things as possible. Well one day, you simply figure out how stupid it all is. It just isn't worth it. He was also setting an example for me and he obviously figured that out by himself. Well, look at him now: he's a computer progammer that has only about year left to graduate, and he's already working for a company AND working on his very first video game. Had it not been for his decision to stop wasting his life on doing constant misdemeanors, he'd probably still be in the same loop right now.
Again, this may sound like a cliche that pisses teenagers off all the time, but wait and grow up a little. You'll see.