Thank you so much for the great feedback, and the video of your gameplay! Which level did you get stuck on? I'd love to help you get through it!
It was the same as the last on the video. If I remember correctly you need to go up through the double surface all the way and then right to pick up the thingy and then go back down and to the right also through double surface. I am not sure if that item on top is required but I couldn't either finish without it or get it without dying on the way back 😅