Time outs don't phase my 9 yr old daughter?

Telling her off and losing your cool doesn't do you any favors. It shows her she can get to you. By nine time outs are pretty much not effective anymore. You can ground her She stays in her room, period. No TV, no computer, no phone. She's pretty much in lockdown and can go to school and ballet and that's it. Try not to react emotionally to her.