Two modes of a developer
For as long as I have been creating software I have been noticing a duality: you can either be its creator, know all of its ins and outs, or you can be its user and enjoy it fully. Not both at the same time.
Whenever I played a game mode with my friends which I created, while they have been having fun using it, I was busy monitoring what can be improved or what's wrong with it.
And I still can't get quite the hang of juggling these two modes.