Rearing at me (could lead into stricking out at me), biting, and kicking are BIG no no’s in my book. We have to remember that horses bite and kick each other all the time. Check out this video on how mama mare disciplined her baby….
Baby wasn’t scared of mama, it has to learn. What I would do is take a dressage whip out with me every time. If/when she reared I would swat aggressively at her two front feet in the air, then I would chase her off. She has to learn that you are in charge. In fact I would turn my back on her just to entice her, if she rears or jumps on you, I would go after her. I would become a crazy person for a few seconds, then right back to my sweet little self. I would be consistent every single time.
I love my little boys in my space, my biggie absolutely not… but my little ones are just so darn cute. If they are in my space, they have to behave. If they misbehave I send them out.
Good luck and keep us updated!