-or- yes, I DID deserve to pass 9th grade geometry!
First off, let me say that I find sewing SO grounding. It's the polar opposite of academic work - the direction you need to take is fairly straightforward (or maybe there are two or three options to weight the merits of, but it's not all nebulous and squishy), and the results are immediately visible. Which is why when I was feeling weirdly anxious about "what comes next" in my "real" work for the day, I took a quick sewing break.
( Sewing blather back here... you have been warned. )