To my mind landing an aircraft is a fairly multifactorial event compared to flying straight and level, or taking off. Lots of little things can change throughout the process that can really screw up the mental calculations you've made on your approach.
You were landing with pretty much an at limit crosswind for the mighty 152. Maybe it shifted a bit in the final stages?
There'll be plenty of landings where you wonder how you got down, and just as many that you think are set up beautifully that'll go erse up and require you to work to sort out a sudden problem. So it goes for everyone.
JR