My TB mare, Molly, is starting to try and dominate me. When brushing she'll pin her ears and try bite if im not scratching her itchy spot. Or if I walk up to her she'll sometimes pin her ears and walk off. I used to hand feed her treats, but have cut them out completely. She can't stand tied(Will freak and break free) So I am starting to just try and hold her with her head up. She is always rubbing on me and trying to get her head down for grass. I yank the lead and firmly say "STAND" when being to pushy. When she tries biting me on the ground I give her a smack and firmly say no. She's great under saddle though, but I've been thinking about doing some ground work, like lounging and leading work. She is very much on the fat side but since she's in work she's gets a scoop of coolade after riding or at night.
If anyone has any better suggestions please help me!