>>7643886have sex. it'll help you move on.
another good trick:
write down how you feel about her, how "awesome" she is, etc.
print it out and keep it somewhere like wallet or sock drawer.
Look at it in a few years if you get dumped again or whatever, and you'll be amazed at how off you're view of your ex is, given time/perspective.
tl, dr you're going to meet a lot of women who are vastly superior to her, and much better for you than she was.