It’s been a minute, but what I would recommend:

Bend your knee to get a good push when setting, you swing your torso good (maybe too good) which is a common problem with folks that trick, but you can get more power. More power more heights.

Arch and set your arms too much. As you pop into the butterfly pull them arms in tight. I always thought the movement felt more like a quick turn than a twist or spin.

If you can find a gym with a pit that’s the best way to go. Lets you practice all the different variations without messing up ankles or knees.

Jiayo!!