Iv been trying to load and pop unhooked for a good month now and I can't figure it out?

I can load and Pop hooked in and get a bit of height raleys and that but when it comes to unhooking it just doesn't happen.

Iv tried unhooking on a few kites my dice, rpm and park. First I trim my kite a little then I keep the kite on a 45 load up the kite and then head down wind while doing so I unhook I then lean back cut hard with arms in and elbows bent and this is where I'm not doing something right? From what I know your then meant to cut hard up wind and pop off your back foot. Then your off the water land ride down wind and then hook back in.

When I go to cut up wind to Pop off the water it the bar/kite rips my arms off and get no where with no pop. There's way too much pull? I'm doing something wrong?

I know this is meant to be a quick process and happen all within a second.

Iv watched video after video on YouTube and can't figure it out?

unhooking before back rolls? wow
I learnt, Boosts, backrolls, frontrolls, kiteloops, kite loops with back/frontrolls, then unhooking. with some board offs etc in there as well