In school, I used to be a jack of all games. I played basketball, volleyball and whatever game I could at the time.
Surprisingly, in my time at school, I never represented my school on a national level. Why? I was average in all the games. I was never excellent in one game.
As an entrepreneur, you must consistently have a total and undivided focus on your one thing. Be excellent at that one thing you are good at.
Take a look at the greatest companies out there, what are they known for. Well, they do one thing but they do it so well and become the masters at that one thing.
What is your one thing?
What is that thing you have decided to be excellent at? That one thing that if you executed excellently, it will have a domino effect on everything else.