itch.io

Because you made the game and understand its inner workings deeply and have played it alot during developement it can become difficult to judge difficulty becuase you are so good at it, a simple way to nullify this effect is to get someone you know to play the game, screen record then leave the room and let them play then come back once they are done, watch the footage back and see where they were getting stuck and why, it will lead to a more enjoyable experience on release I think 

That level is challenging but it's not 'too difficult' in my opinion. If your idea was to make a challenging game, that level is perfect.