Heya!
Honestly everything that you described is true. The levels are too hard (even I have friends who didn't pass the tutorial), and that's because I didn't balance the game out (you might not believe but I boosted the character xd), and it was too late for me to balance it when I realized how hard it was.
In the third level, you have to run immediately to the right, and after the next snore, you will get a stick. With that stick, you can easily push huge objects. After completing this level, the next level will be 10 times easier. As this game's name called, you'll have to wait for 1 minute xd
Thank you very much for honest feedback!