Help Please

I have been looking for the laws specific to Colorado, but can't find them. In short I adopted my ex-wife's daughter when she disappeared for a year. Well she came back and regained custody and has turn her against me completely. My ex-wife turned into a hate filled girl. She is 9 right now. I pay child support and that really isn't the issue. I'm more wondering how i can rescind the adoption because I no longer can deal with the other issues that keep coming up because of my ex-wife. Any help would be appreciated.