I spent 6 months cutting stair stringers wrong because I never asked anyone at the shop
Started at Ferris Woodworks in Tacoma fresh out of trade school and just copied what the guy next to me did. After my third set of stairs came back from a job site, the foreman pulled me aside and said "your rise is off by a quarter inch on every step, how did nobody catch this." Turns out I was measuring from the top of the tread instead of the actual nosing point, and once I switched, all 14 steps lined up dead on. Any of you ever get corrected on something so basic it stung for a week?
Buddy, my version of that was laying out a whole set of cabinet doors off the wrong face frame line and then wondering why every gap was wonky. The shop lead just looked at me, pointed at the mark I'd missed, and walked off without a word. The worst part is you can't even be mad at anyone but yourself, because the info was sitting right there the whole time. Six months on stairs is a long sting though, and the fact that the steps came out dead on after the fix says you can actually cut. Half the battle in this trade is just having somebody tell you the dumb little rule before you burn a whole week on it. How long did it take before you stopped double checking every nosing twice out of pure fear?