Just wondering, do I sound like a ******?

I'm not sure but this year I have been getting quite alot of comments from my friends and family that I am getting meaner so to speak. It's true I sometimes make smart *** remarks but I can't help it some people are just so stupid. Well anyway, yesterday this boy on the soccer team(who is really irritating) stepped in goose poop and he just looked at his foot and kept running around spreading the poop. And finally I yelled across the field "Wash your feet dumb***!" And for the first time in my life I had a teacher call me a *****. But it's not like I mean to everyone. Just people who irritate me. And I can't even tell anyone in school that I model swim wear now because they'll think I'm a snooty ****** even more! It's so frustrating because I try to be nice to people and they still call me a b****.