Regarding the game being too hard, I think that a regular person would not be able to beat each level on the first try and it is going to take multiple tries for sure to beat each level unless you have extremely good memory. The dizziness does affect the player in trying to complete the game as they will be kinda disoriented. I have been playing the game in time intervals so I am not very sure whether other players feel the same as me.
I am happy that you already have planned out how things will go for the boy and the core part of the game. So do tell me if you have a massive update to the game. I will try to play it when I am free. Thank you :).