How to get over a crush?

[Anne]

I've had only two major crushes on guys,one being the one now. The only way i got over my first crush was when i stopped seeing him (after i entered high school) i had a crush on him all 3 years in middle school. I eventually forgot about him and he doesn't really cross my mind anymore. Now there's this one guy i have a crush on. i basically started liking him since freshman year of high school. I am a junior now. He literally is all i fu ckin g think about and it makes me sad because he probably will never like me.i have him for 3/6 classes and he's always in my sight which sucks dude. I try to not think about him which only makes me think about him. Last time i overheard his friend talking about hugging a girl he likes and it made me so heartbroken. The only way i will probably stop liking him is once we graduate hs which is not for another school year. Give me your tips on how to stop liking someone!!!