She has to learn for herself, nothing you can do can change that, you can only try to manage when she learns things.
She needs to know that fear shouldn't control her, but that she can't control everything once the snowball starts down the hill.
I think it was a comic in the stars and stripes, ernie something or other, he was in a hospital bed with a broken leg and the bubble said, 'Halfway down the hill I suddenly realized I was no longer the master of my own destiny'.
I've tried to minimize those times as best I could, perhaps that is good advice for her, as well.