However if I could go back in time I would risk a beating and flip on them in class like proper animal fighting and use my teeth to bite them hard and rip flesh like Gollum. I'd go full sperg and throw tables and chairs screaming until a teacher restrained us and dragged me out.
You've got to do it in class so the teacher can step in and break it up if they get the upper hand (you'll get a beating regardless).
At-least when they try to retaliate in the street you'd be known as the psycho rather than the pussy. You can get away with this behavior when you're younger, at my age now I'd be thrown into prison.