Thanks for playing my game. Yes, I think the main issue is that I didn't test the game on many players before releasing. I also only had time to create two levels so I thought if I made them too easy it won't be fun. This was a bad decision and I should have handled the difficulty better. I am considering adding checkpoints and the option to select the difficulty as well as reworking the levels and adding new ones.
Thank you for the feedback and I will take what you listed into consideration.