How do I overthrow the popular girl?

she's rich, blond, and has big . but she's not pretty, and she's mean. she's hurt so many people and she is totally oblivious to it. i used to hang out with her, but we ended up in a fight and now she doesn't talk to me much and i'm pretty sure she talks about me behind my back. she made me give up lots of stuff to be her friend. i had to lose my old friends and change my personality for her. i am fairly well liked among everyone else, so that gave me the idea that i could try to overthrow her. i want her to feel pain and regret for the way she treated me. i want her to respect me and even want to be me a little. what do i do?