Thanks for the advice! I'm mostly an english rider, so I was trying to keep her in her canter by using my seat, I'll stop that. She normally is in a snaffle, but I was told that putting her in a curb would help her with her carriage. We'll go back to that as well. Her leads looked correct to me both directions, but I'll go back and look at the videos again.
Anyway, she's a young 5, Impressive bred HYPP N/N. I'll have to have a look at her papers again for exact bloodlines. Her dam was Jimpressives Minx I believe. She's supposed to start going halter to, but we really need to get muscle back on her, she is really weak. As I said, I don't know much about Quarter Horses and western, I'm totally at a loss of what to do.