Don't worry about it; it happens! Always keep moving forward. I actually bombed the exact same PT. I reviewed it, took it with a grain of salt, and then moved on. What ever you do, don't let it affect your future progress.
i'm doing the same about 5 games a piece but i'm prettt solid on sequencing games and getting decent now at the basic in/out games so it's a work in progress but i am remebering inferences to check and apply!