We just finished replaying the game to ensure it was possible to complete. Extremely vague complaints such as these are entirely unconstructive to us.
While there are parts of the game that may indeed be harrowing, we were able to pass them after a few attempts. Unless the bar is set very low, it is generally not possible to design obstacles that every player will assuredly be capable of passing with ease.
Without further information we have no way of knowing what your capabilities are as a player, and thus how your experience correlates to the fairness of our game on average.
The vast majority of our content does not feature this type of demanding gameplay, so there are many other games you can try which likely will not pose this type of problem for you.