my arm's quite bruised.
and I don't know how to tackle.
the week they taught it, I had no helmet, so I stood and watched.
because my proficiency at "to tackle" is low, I'm not getting any sort of playing time in scrimmages.
so I don't improve and won't get playing time.
I really just need to try it out, slowly, and figure out how to do it.

fortunately, the girl I was up against (and gave me the bruise) doesn't really know how to do it either, so I got right past her in warm-ups.