A suggestion would be to make her stand in the cornor or stand up against the wall with her nose pressed against it for each time that she disobeys you. I have also found that a good spanking or whipping using a leather belt that leaves her red for a few days helps get the point across and will help prevent her from questioning you or talking back to you.

If you ever want a few other pointers or would care to chat you can find me on txwolf533@yahoo.com