Best way to get over a girl?

Well I took an adult roles class, I should have probably listened more too the lectures in class, but from what I remember, most of the time when you do think about a girl way to much, it turns in into somethingthat shows that you don't really care about her. Like ya know lust instead of love I don't really remember, but that was just a side note.

The only way you can honestly get her out of your mind is by doing something else to distract you from it, but if you're just doing things constantly to get her out of your mind that just not good, just keep doing what you do, if she pops in your head, try not to linger onto that thought to much.