Roller derby 45:00 
Fun practice! Mittens was leading practice, and she had us do more endurance stuff than normal. Lots of pace lines, etc. Right knee felt a bit iffy going non-derby direction, so stood on the side and practiced transitions for that, and then knee felt better when I started up again.
Side note: I think the knee stuff is hard to keep an eye on, bc when it started hurting the first time, there was no warning at all, and it just started hurting later. So trying to take hints whenever I have any discomfort, even if it's not "pain". Not sure if that's the right approach.
Thennnnnnn we got to play a game where everyone puts a bandana in their shorts like a tail, and you try to go around taking out people's tails! Great opportunity for me to practice fast transitions :D
Then we got to do 3-on-ones, and I asked Mittens which line I should go in, and she said I'm a jammer! Hurray!!! I think jamming will probably be more fun than blocking bc you get to go forward instead of trying to keep other people from going forward, and also you get to go faster :D She said I was a strong pusher, and also I got to fake people out too!
Other note about knee: fell on kneepad and it hurt a bit, so waited a bit and it stopped hurting, then before bed I pre-emptively used an ice pack and took advil (2 when I got home, 2 before bed, ~1-2 hrs apart), and the next day it feels 100% normal.