I came to the same conclusion. Often when working on a difficult problem I used to think, "What the hell is wrong with me? Why is this not fun? Why am I not

I came to the same conclusion. Often when working on a difficult problem I used to think, "What the hell is wrong with me? Why is this not fun? Why am I not loving this? Did I choose the wrong career or am I just a lazy useless person?" Then I realized that as an athlete I never would have wondered why it hurt when I got cramps late in a game. I never wondered why my body complained about running the last mile or completing the last rep in training. I never had any self-doubt because I got bored practicing a skill hundreds of times to unlearn a bad habit. Those things are not inconsistent or contradictory to the joy and satisfaction of being an athlete. Thinking about that helps me a lot when the problem I'm working on is causing me only frustration instead of immediate gratification.