The worst part of injuries is the painkillers. Psyche ... that's definitely the best part.
I don't have a confidence issue, I usually come back as mentally strong as ever. I think it helps to be confident and brush off the injuries as a "freak accident." That way you won't be afraid to hit a feature with confidence and commitment.
If you get injured again, so be it. Freestyle skiing is a dangerous sport it comes with the territory.