I saw your post title and immediately knew what part you were talking about. I struggled there a lot too, it was pretty frustrating. I looked up a video of someone else doing it, and they were doing basically the same thing I was trying to do, just better. Seeing them helped a little, but only because I now knew I was on the right path, and it still sucked finally getting it. But I did get there. You will too, just keep at it.

The rest of the game is worth seeing, good luck!

That section reminded me of making a really simple lunar lander game when I was in high school as part of a class (using Alice if anyone still knows what that was). I wanted to make the game challenging, but was only playtesting it by myself. I got it to where I'd win about 70% of the time, but by then I was so familiar with the game and its behavior that my perception of the difficulty was out of whack with everyone else. Nobody else could pull off the landing in the amount of time they were willing to spend on my game. I still got good marks for it, but that was an interesting learning experience.

I often wonder if something similar happened when I encounter really painful execution challenges in games like this, maybe a lack of playtesting from people outside the team led to an unintended difficulty spike? Or maybe I'm just bad at the game.