how can i get past her looks?

my girlfriend and i split about 2 months ago when we went to separate colleges. although we had an amazing relationship and loved each other very deeply, she had way too much emotional baggage, and way too many psychological problems.I always did everything I could to make her happy, but since she's gone, she's been treating me like sh*t, and refuses to talk to me for her own messed up reasons. She did a number of things that really, really hurt me during the relationship, and I really want to move on. The only problem is that I'm still so hung up on how attractive she was. She was drop-dead stunning. I have always had really bad self-esteem and self-image issues, and I'm so afraid that (superficial, I know), I won't be able to end up with another girl as beautiful as she was. I'm becoming obsessed with it, and I don't know how to make it stop. How can i do that?