My step son was on meds for ADHD and I don't feel like they helped at all. When the kids dad died my now 11 yr old became very unruly, due to the circumstances I was patient, but it got to where he was uncontrollable. We started going to counseling which in my opinion was just a time to play with new toys for him. She had me due the evaluation, but he did not come up ADHD or ADD. I'm curious to know if your child feels remorse when she does something wrong or does she just blow it off. My step son was like that but my 11 year old is not. While he tries to run the show I remind him I'm the mom and I'll take care of things. He seems worried like if he doesn't take things into control no one else will, but he appears bossy, demanding, and controlling. The only punishment that has ever worked for this child is to put him in his room away from everyone else, a half hour and I have a new child. Of course all children are different and respond differently, it's a matter of finding out what it is that will work. Someone else said pray, and I agree it is the one sure thing we can do. I know of others who have had children like this and I hear they grow up to be wonderful people, so there is hope.
Oh I almost forgot to mention the times he tried to get physical with me. All he did was raise his hand to me, I grabbed him and used my Tae Kwon Do training to put him down, I did not hurt him I just let him know I don't care if he is bigger than me he will not get away with it. Needless to say he tried it again and got the same result, he has not tried it since. I want to also mention that he was so upset by this I had to restrain him for about twenty minutes until he calmed down. While not everyone has martial arts training I encourage you to take a stand right away against any type of physical threat. You don't have to hurt them just let them know that type of behavior will not be tolerated. It is scary when one of your own children threatens you in this manner, but if it is not stopped who knows where it will led.