I created some videos here last year :

Maybe I should download and upload them here:

Focus on hanging, holding first.

Focus on the back not the arms.

Best is the negative. Jumping up and hold.

Do everything slow

Like here

https://www.instagram.com/reel/C7OrTahoF_b/?igsh=MXdzMXB6dXBvaDR2cg==

I think we Bitcoiners should be good in holding anyway 😉

https://www.instagram.com/reel/C2vRNSiLB2j/?igsh=eXcxZTl0cjV2YXRr