My horse hated me when I first brought him home. I know the feeling.
I found that the only way to make peace with him was to win his respect. It's not a given, it's something you have to earn, and to earn it, you have to deserve it. If that makes sense. Like Dusty said, doing things with her on the ground is the best thing you can do at the moment. Asking an experienced teacher would be a good thing, as well.