I can't sleep

So, thanks to volleyball at school, I now have a sprained ankle which makes it even harder to fall asleep. I don't know, it doesn't really hurt, it just feels really really weird and when I make a wrong movement, it feels annoying (and it hurts a little). And I can't walk properly, but that's got nothing to do with the fact that I can't sleep.
Lately I can't fall asleep at all and this doesn't make it any easier. Damn it, dear body, just stop annoying me, it's not funny!
Alright, yeah in case it wasn't clear, the sadder/more stressed I am, the weirder and less funny my humor gets.