I have gotten stuck on step 55. It says "Wrap the paper to the front" but I cannot figure out a way to do this. I'm not sure if I messed up somehow earlier in the process?!?!

finished with step 53 (angle of photo is about 45 degrees off from diagram)

finished with step 54

I cannot figure out any sensible way to bring this bit of paper around to the front that does not result in a crumpled mess. Maybe I am somehow missing the "small inner edge" ?? Any help very much appreciated. I will keep wrestling with it.