Get more confidence then just do it if that dose not work try it with a mattress

You are probably dropping one shoulder think about setting up and a bit behind and don’t lean to one side

Yeah, for sure dropping one shoulder more thant the other, try to stay more balance

Throw your arms back with an equal amount of force to initiate the rotation. If that doesn’t work then you are probably dropping a shoulder midair, which you don’t want to do.