I would try lounging her or even start Leading her over cross rails at walk and trot. Once her confidence builds up, then I would start raising jumps, but right now I would just help her get her confidence back
Just take it back to the basics and start over again. Start with poles and work up from there and keep her in a nice steady rythem
I suggest you to free lunge her to get some bond and confidence.
(If she is ok and the saddle fits) start flatting and as a paralel excercise free jumping.
To finish, start jumping him again under saddle with low jumps.
Remeber: confidence is one of the foundation!
Have you tried free jumping her? Is she the same without tack? Also check fitting of the saddle and ask someone to observe when you ride and see if they have any feedback which could help! I hope this helps🙂
Since then she has been deeking out at almost every jump. I think she has lost her confidence. I don’t have a trainer so I am resorting to the internet lol