This game is awesome!! The cat design and animation are so charming. The gameplay is very thoughtful and clever. The music and sound effects are stellar. Everything fits the theme perfectly. And I love the idea of counting each item you successfully "unluckify."
I personally wish that it was easier and smoother because that's my personal preference even as an experienced platform player, but I understand not every game is made for me. You could consider allowing players to choose a difficulty level at the start and design new levels that are easier or simply add hearts so you don't die immediately and increase the jump height.
But overall, I think you made a really cool game! Great job!