Seniors at my gym class are calling me names and bothering me.  Im only a freshman, and i barely know anyone. What should i do? Luckily, i only have them for 1 class... Im very scared right now.

Inform a teacher or person of similar responsability, also tell your close friends/family.

Happened to me, and that's what worked. :)

buy
a
gun!!!!!!!!!!!!
problems are easily solved with guns and if you can't buy a gun get a knife
you're welcome

Inform whoevers is in charge, make it clear you want it to stop or you dont attend the class. I dont know what its like where you come from, but here you have to be firm with teachers because they only care about looking good in front of other teachers

you have any family members attending your school?

take Karate lessons.

get to know your fellow freshman, click up together, corner one senior one at a time and do whatever you want to them (stab, beat up, tickle, tell jokes...)

I used to just act insane, but only around the ones who tried to bully me. It's surprising how well that works when you're a big guy. Though if you're not a big guy, yeah, snitch on them. No amount of schoolyard dignity is worth being tormented.

 Both of your posts in this thread have suggested violence. That would be the absolute worst course of action

i don't believe in that violence stuff.. For some reason, they only seem to bother me when im alone. If im with some friends or something, they just call me a name, and leave it. Maybe staying with friends helps?