School is making me a little worried

Call me an attention seeker or "offensive waste of time" but this is the only way I can get support without getting embarrassed guys, so this guy keeps saying inappropriate, rude things to me saying he's going to do stuff to me asif it's a joke and some thing to laugh at but I don't find it funny and it's effecting my relationships as it's making me more scared and a little frigid, need help please🙁