You should tell your parents and your teachers. You can also file a report just in case it gets out of hand. Without your parents help, the bullying might never stop. I hope things get better for you soon.
You need to report it ASAP. There are procedures in place at all schools to deal with this but if it's not reported how do you expect anything to change. The first step begins with you say that's enough. There is no reason to go thru the misery. You can make the bully's life miserable by reporting them. The bully is counting on you not doing anything and getting away with things. Report it.
From personal experience I somehow end up bullying the bully, but I wouldn't recommend it. I've also hurt lots of bullies, also not recommended. If they are a problem just tell someone, if they are a really annoying problem just off them.