Focus on just one thing

When things are not working as you had expected, what is the one thing that you can focus on, that will move the needle in positive direction?

Not thirteen.
Not five.
Not two.

Just one thing.

Doing it relentlessly well while consistently getting better at it is the secret cheat code most people avoid.

Imagine where Roger Federer would have been if he played tennis for a month, then golf for another, cricket for the next, and gave up in the 4th month?

Just like water is a staple in all meals, focus and consistency is a staple in all feats.