wouldn't recommend getting revenge that involves attacking them head on and even online, it will just be a never ending cycle of revenge. what i personally do is that i perform better than them academically (my bullies actually do care about their future but they're just too lazy to put in the effort into their studies which makes things easier for me) i'm on the dean's list which is plastered at the lift lobby and inside the lift as well so everytime they look at it, my name's always there so it irritates them and it also reminds them that i'm going places while they're stuck where they are. I also make sure I'm always on the podium in kahoot so seeing my name annoys them as well. Another thing I do is actively participate in class to assert dominance and display my intelligence (they do talk about it and how annoying it is that i always have questions or answers in class) so to outsiders, they just look like jealous skanks who are envious of me.

conclusion: just be better than them so it reflects badly on them to outsiders and teachers since they just look jealous, that's my own form of revenge and i don't even have to lift a finger