HELP ME FIND THIS MOVIE

i’ve tried every possible website but nothing has helped. so they are teenagers i think? they are neighbours and they hate each other. i remember one scene in the movie where the boy with his friends will the water in the school with this orange stuff and the sprinklers go off and orange goes everywhere. also at the end of the movie when the boy and girl like eachother she pulls him into a closet at school.

please help me

i beg please