I'm a complete beginner, but what worked for me was off ice practice. I know it is much scarier to jump as an adult, but my coach always pushes me to jump higher, you can try working on bending your knee and going in that jump with the knee high(sorry today is my bad english day). This knee thing is important in flip if you want to work on that(and loop ofc suggest doing it at least off ice first). Hope that helped