if you are having trouble micro managing and releasing as well as rushing, its not your horse, its you ! Believe me, I have had the same issues in the past ! The more you micromanage the worse it will get.
They key is to give her a nice half halt [if she needs it, which she probably does] a few strides in front of the fence and then float the reins at her. When she realises she has to jump on her own [with out you micromanaging !] and you wont be in her face, she wont rush or pull against you.
I like to practice with a line of 2 or 3 poles. Get her straight, half halt, float the reins, and put your leg on and stay out of her way =]
Gypsy & Scout <3Everybody is a genius. But if you judge a fish by its ability to climb a tree it will live its whole life believing that it is stupid. ~Albert Einstein