Hi Kamila! It is a tough one for sure. Try performing the switch part with bent knees, and only going a little of the way over. For now, you don’t need to do a full meathook pose, as you build your strength. You can do this from the ground, going slowly back and forth at first. Then take it up one climb, then more as it gets easier.
As far as the spinning portion- here is Brett’s spinning technique to refer to. Let us know how it goes!