So I went out today for the first time in a week, and went over all the stuff we did last time, and apparently it stuck :D
I also had a big scare, when she smacked her head on the pole it made her shake her head around really erratically at times. I came home all worried about headshaking syndrome, did all this research, and life kept me from going out to the barn to test all these things on her. Well... today, after what I'm sure is a reasonable amount of time for her mouth to heal, she had no headshaking symptoms. I'm still going to keep an eye out just in case... I'm such a paranoid mommy.
Oh, and to make my day after the bad catching experience last time I went out to get her in pasture and she came nickering up to me right when I whistled for her. It was a great way to come back to the barn :] It really felt like a "hey, it's ok I know you don't want to hurt me, and I might even kinda like you" for the first time. Aaaaand she gobbled up her new grain/supplement mix. I've got her on some cheap alfalfa pellets with a little bit of corn and molasses in them, rice bran, and a maintenance joint, vitamin, and digestive supplement. She was literally licking her pan clean.
Good times, can't wait to go back tomorrow :D