Be careful what you get good at

Whatever my job title was in several diverse occupations I was an artist/craftsman. I could write a little bit. I could dabble in science and technology on an as needed basis. 

Maybe I had an aptitude for investigative work. At least a detective I came in contact with saw something in me many years ago.

When I came back to live in Coatesville, I thought I could be just semi-retired, go fishing and do a little drawing and photography. It didn’t work out that way.

I don't think I'll ever forget this scene from “True Detective”:
Starting at 1:06

  "Why'd you quit, Marty?
Yeah, you could have been boss, you know.
  LT, at least, captain.
   I did another 4 years after you left, and I I guess the job just kind of ran its course with me.
   How is that?
   I was gonna play baseball, ride bulls.
You know, you end up becoming something you never intended.
Uh, I guess you never really even know why.
   I suppose I could have been a painter, you know, a historian.
Old scenes, new details.
   Yeah, yeah.
You do much painting?
   Nah.
Little late in the game to start something like that, I reckon.
Life's barely long enough to get good at one thing.
 If that long.
 Yeah, so be careful what you get good at."