Hmm… usually there will be one boat on the bottom and then the rest of the boats in the same spot on top - you could try breaking the bottom. If they’re all in a stack of like one per row, I’m not sure! Maybe double check everything is as it is built in the video, and that you don’t have any crazy mods or anything installed.
place trapdoors on one side of the glass column and when you launch yourself, wedge yourself in that corner. the death doesn't come from the speed it comes from the trajectory