How can i stop liking him?

ok, so there is this guy, and I think im in love with him. I have known him for like, a year and a half now. I have got to know him really well, and whenever I see him, my heart starts pounding, and whenever I see him looking at me, my heart pounds even...

harder and my legs get a kindof numb feeling. and im always thinking about him, and
I see his name EVERYWHERE (because his name is max) and I dream about him. and I cant sleep because im thinking about him, and he is the first thing I think about when I wake up in the morning and everything reminds me of him. I hate it when he talks, or even LOOKS at another girl or when he even hangs out with guys. all I want to do is be with him, and like, when im sitting in a class without him, I feel like crying because I just want to be with him and there is no way I can be..
I really need to stop liking him, because it just keeps hurting me more and more, seriously, what do I do??

tell him how you feel ...

tell him how you feel...
and try to hang out with other people a little more to get your mind off him