What is confidence?
Some would say visiting an unfamiliar house/apartment, knocking on the front door and not knowing who is lurking behind it. Then proceeding to enter a dark lit room, meeting a stranger for the first time, undressing, and lying face down butt naked in a foreign bed.

What is confidence?
Some would say seeing countless of naked female bodies, fucking hundreds of pussies raw, touching and licking countless of clitorises, groping and sucking a thousand tits, slapping a hundred arses, and sticking your tongue inside every orifice of the female body.

Confidence is relative to the individual, and the circumstance.
But complete confidence is being able to swallow a whole coconut and trusting your anus.