Hey, so my trainer wants me to start training with a 4 year old mare but the problem for me is that for all of her life she has only been handled and riden by one person. I’ve had 2 trainings with her so we’re just getting used to one another but she just doesn’t listen to me at all. She’s pretty okay in walk and trot but when i ask her to stand still she just won’t listen or will start backing up. And in canter she’ll just run away and I can’t control her speed. Does anyone have any advice on how i could train her to get used to me and be more relaxed when i ride her?