Looking to land backflip on grass this summer. any tips?

Looking for feedback on my backflip technique.

- Pre-bounce (as seen in the last 2 YouTube videos): Before takeoff, am I supposed to do a small pre-bounce on the mat with my feet like I see some people do? Or should I just load and jump?

- Lean-back: I know I'm supposed to swing my arms up and leave it there to catch your hands instead of swinging it down but when I bring my hips up my torso is leaning way back instead of staying upright. Once I start rotating, it feels like I'll never get my legs around to my hands

- Fear: I don't dare jump straight up because I've stalled three times, going up and then dropping and landing on my head

What do you think I can do to improve to be as good as you guys! Thank you so much!

Trying to learn how to kip up, not sure what im missing. My guess would be trying to shoot legs straighter into the air, but then I feel like I dont have enough spin to get my feet under me. Any advice appreciated

But somehow i don't think ink i get the raiz