Try flirting abit with her and her friends or just ask her out 4 coffee or something without being full on that u like her. Be a bit more cheeky/ignore her etc.
If she doesn't like you tho forget it ur only other option is to get with her friend who looks similar as good/ better than her. Then she will like u.
Do her friends like you? Instead of asking her out, ask one of her friends out instead, she'll get curious, think u are cool as ur getting with one of her friends
has approved u. Then she'll get competitive and jealous. (if u've been with her fiend who is similar level of looks to her, then ur set)
If that works, (and you don't mind doing this) cheat on her with 1 of her friends, then u will have her whenever u want. Better she sees u as a "********" badboy. Than a male friend (i.e. where she thinks ur a loser whos not good enough for her)
Also consider improving ur status within the school. U must be as cool/ more cool to get her. (ignore following if its too crazy for u)
I anyone belittle u in front of her belittle them. If she thinks another guy is more cool than u, then u better make him look stupid (this isn't bullying its competing for a mate)
Or sit there in the loser/ friendzone while she gets ****ed by all the "********s". Or be the ********/winner that gets with her.
CHOICE IS YOURS ONLY THING STOPPING U IS YOURSELF.
Chances are u don't go to a rough school even the big strong rugby captain will do **** all if u punch/slap/spit on him. U might come off worse in the altercation like get thrown on the floor/nose broken, but there not gonna carry on and kick ur head in and really damage u. But u will still look cool as u were game o have a go a someone bigger at stronger, which is pure courage.