Interesting game, for sure. Creepy vibes, definitely achieved! I would say, the difficult controls are not inherently a problem. The tether perhaps felt a bit off - I love to be able to use my momentum and swing off the tether points.
Also, would've been great to have instructions in the game in some form. I initially played it without reading your itch page in detail, and didn't realize the tether was a thing.
Ultimately, cool concept. I think the difficulty was a bit high for me personally, but was fun anyway.