I have a 7 yr old solid paint mare that I've had for a little over a month. She lunges well, she's very intelligent, but when it comes to tacking up, she fights all the way. She's snapped cross ties and when tied to the hitching post, she twists and pulls and rears and I'm afraid she'll hurt me or herself. It ends up being a two to three person job to get her bridle on her. Once it's on, she's extremely well behaved again. Her teeth are fine and no other health issues. I've tried flavoring the bit, I warm it up in my hands if it's cold. I can halter her with no problems. She has no problems with her ears being touched. Please help! Thanks!!!