I'm really not very good at jiu-jitsu. I am simultaneously too impatient to wait for someone to butt-scoot up to me (and thus fall into plenty of sweeps, submissions, or guard pulls) but I'm also too comfortable with getting put on my back. I've taken several months off here and there, and I feel like I've forgotten how to play guard, how to pass, etc. It's frustrating, but at least (thanks to this fitness challenge) I've noticed that I no longer feel like absolute death at the end of five 5-minute rounds of rolling. Cardio isn't a problem, I just need to be more regular about writing down what I learn from class and trying to remember and apply it, as opposed to just letting my mind go blank when rolling.