Man, ten thousand hours. I hit that mark a couple years back and my first thought was "wow, I'm officially too dumb to be impressed with myself." It's like your hands know the job better than your brain does, and your brain gets jealous and checks out. That's when I start leaving my tungsten on the bench or forgetting to gas up. The skill is totally there in your fingers, but the focus has to catch up all over again.

Nothing stays secret once it's on the internet.

Been there. It's like every job has that one thing someone else half-fixed and now it's your problem.