Where did my common sense go!?

I spent about a week or so cutting out this new lino print - sort of just making it up as I went along, from a vague idea I had in my head. I only realised my fatal error once I had inked up the print - TO MY HORROR - it was backwards. I don't know why I'm surprised, but I feel like a muppet now. I am shamefacedly going to make it again, probably with a few tweaks, one of which will be making sure it's a MIRROR IMAGE.