Most teenagers are all wrapped up in being cool and all. I don't really care. Tell me that. See if I care. I'll still do it, whether people think it's the dumbest thing on the planet.
Hypocrites are really the only uncool people.
Don't let insults get to you. People who insult other people just for fun are just doing it because they are insecure and don't have great social status. They want to make fun of other people because they don't have anything worthwhile to say. Just ignore them, and it makes you seem ten times cooler and makes them seem like a little kid. Trust me, it works.