Falling a lot will make your balance get better real quick!
I have fallen 15 times in 11 years. Three time last year. Plenty for a middle aged lady like me.
But as for you, and this IS your thread, not mine, were you bareback or in a saddle? I think that jumping correctly takes some instruction.
Since I know that you are working on dressage, if I remember correctly, maybe you should just let the jumping go for a bit. Or, take a few jump lessons.
I can't jump worth beans. I only do it on a horse tha I know can pack me over the jump. Mac can do this. But it's him being a gentleman to me. (I love that guy!)
Sorry you got dumped. OH, I always cry after falling! I swear, it's like an automatic reaction and cuss, too!