My mare loses confidence if she gets in deep to a fence and won't jump it unless the stride is perfect. Does anyone have any tips ?

Put the jumps smaller so that she can do it from a stand still and ride posutive.
Make sure your leg is on to support her over the right distance. Taking your leg off because you see a deep one will cause her to lose confidence.
Join the fun and sign up to connect with our 200,000 members!