One thing more people need to do in their lives is to stop caring what people think.
Now, the only peoples opinions about you that should matter are your loved ones. Whether that’s a boyfriend, girlfriend, best friend, brother, sister, mother, father, grandmother, and so on. Stop caring what the girls in school think of you, what do they matter? Are they going to be around you ten years from now? Probably not, so why let them influence they way you feel about yourself, others, and other things.