This is always a reoccurring topic I come across in forums and subreddits, We've all been guilty of oneitis at least once in our lives so I don't look down at anyone struggling to get over a specific girl it gets the best of us.

I made this post to show you my personal solution that helped me and reference other recommendations in PUA communities, there is no size fits all solution for this problem but hopefully you can give an take from what I have to offer here and mold a unique solution for yourself.

http://bhandbs.com/blog/2014/11/19/how-to-get-over-a-crush-a-k-a-oneitis/