Maybe you already know or could try to find other peers who like math, and see if you can get something started? I think there's a good chance that if you approached a supportive teacher with "my four friends and I want to start a math club, can you help us?", it would get the ball rolling. Perhaps you could put something up on the bulletin board or equivalent you kids have these days, data kiosks or hovergrams or whatever.
Oh boy did I try and try. Unfortunately, my school suffers from two problems: it is very small - so less potential candidates for both teachers and students, and it has a culture of anti-intellectualism; for some reason, everybody hates maths, thinks it is hard and so on. I mean I tried to do an engineering/robotics thing. Even that was unsuccessful. People were _afraid_? of doing things.
