How do I get over a girl I used to love. How to stop thinking so highly of her?

She did many bad things to me but still I am not being able to stop thinking so highly of her. I want to see her as a normal human being , as an average looking girl who can be replaced. I know there are other girls in the world who are prettier than her. But still I am not able to get over her probably because of old times when she was so nice to me. I still keep thinking good things about her wishing her success and being friends with her some time later. But I want to stop doing all this and never think of her again and focus my energy on some new girl who will actually love me and care about me. How can I stop thinking so highly of her and see her as an average replaceable girl?

How do I get over a girl I used to love. How to stop thinking so highly of her?
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