How do you get over someone?

[James]

How do you make feelings for someone just go away forever?

The only things I've ever been able to come up with, is to never talk to the person again. But that just makes the feelings dormant. I can still go and think of any girl I've ever seriously liked, and still know that there are lingering feelings.

Another being to think about it all, logically and realistically, putting things into perspective, and trying to realize I shouldn't like a person. But just when I think I have a grasp on the situation, I can see or talk to them, and everything goes to shit again. The other thing I tried is punching myself in the head whenever I think of the person, but that doesn't work either.

So, how do you get over someone? How do you think about someone, see someone, or talk to someone without those feelings eating away at your brain?