Have you ever used to be good and efficient at something, but now it's been a while since you did that something, and no matter how hard you try, you seem to have completely lost the ability?
Well, here's what you can do:
Have a butchering round first.
Before you decide that you can't do the thing anymore, first have a try that you aim to butcher, or make a complete mess out of. Don't overanalyze it; just do it. And relish in the knowledge that it'll be an absolute train wreck.
You'll not only revive the ability by relearning how to do it right, but you'll also have tons of fun in the process.
RK