I don't know when, but these days I have uttered swear words under my breath.  Usually it's when I'm relaxing and I realize I have to get up to do something, or my attention is on one thing but then I realize I need to focus on something else.  That's when I usually say, "Shit!" or "Fuck!"  I don't think I cursed under my breath like that last year, or even at the start of the pandemic.  But I have now, somehow, and have been for a while.

And shit/fuck, I now need to take a shower so I can trim my nails.