Yeah the game is quite challenging. I couldn't progress because the puzzle was too difficult for me. Perhaps you can also add a level select screen with islands (like Baba is You), so that players don't get stuck on one puzzle.
We added the feature for saving the progression for the jam version, for this case, so you can return to the game anytime. Often you need just some distance to get new perspective to solve a puzzle. But, you're right a feature like a map and possibility to progress on another puzzle is necessarily.
