What self-confidence is to a Navy Seal?

One of the best quotes I’ve heard in a long time was from Navy SEAL David Rutherford. He says:

Imagine a soldier. A soldier goes through training, he’s put in uncomfortable positions, pushed beyond his limits, he doesn’t cling to results, only growth.

He repeats his training again and again…He continually pushes himself. He doesn’t mask his fear or insecurity and he