Good enough

What do you do when the deadline you thought was on the 14th turns out to be the 18th?

A) Continue as planned, finish early, and be ready to start something new that much sooner?

B) Slow down on the project so that you again find yourself working hard to finish at the last minute?

C) Use the extra time to obsess more about doing your best work and meeting all the expectations you attribute to others but that are really your own?

I'm hoping I choose A, but it could be C.

Is "good enough" a good statement or a troubling one?