RE: What did you do wrong this year??
I had a pretty good year. Got busted twice at the tail end of a stalk by the swirling mountain winds. Once on elk and once on mule deer. Neither of these situations were really "avoidable". Wound up getting another chance on the same mulie buck a few days laterand got him the second time around.
Got caught twice during antelope season without my lazer rangefinder handy. I'm not going after these speedgoats again without this device hanging around my neck. I underestimated both shots.
I also learned that, as good as today's various scent management tools are, the old rule "if ya got the wind, yer fine; and if ya don't, yer busted" is still as true today as it was 100 years ago.