Exceptionally hard decisions can deplete your energy to the point at which you finally cave in. If you mentally crumble and degenerate into negative thinking, you'll magnify the problem to the point where it can haunt you.
Success is not what you leave to but what you leave behind
Nobody ever got ready by waiting. You only get ready by starting.
The unexamined leader is not worth following.
Plan and execute your first failure so that you no longer have to fear it.
Look behind you: What have you learned? Look around you: What is happening to others? Look above you: What does God expect of you? Look besides you: What resources are available to you?