You discussed about a task and the deadline for it with your Boss. On the day of the deadline, you get an email from your boss, asking about is it done? If due to some complications it is pending, What will be your reply?

1. "Not Yet"
2. "Not Yet, but I will finish it by [x]."

David Goggins is the toughest man alive. There's not doubt about it. Goggins is the only member of the US Armed Forces to complete SEAL training, US Army Ranger School, and Air Force Tactical Air Controller training. 

Not only this, he came from 

Confidence is a vital weapon for us to pass the barriers that hold us back in our life. And, it is a very significant tool for our personality, charisma, and other aspects.

All of us were lacking confidence at some point, or maybe always. Then again, we watch so many motivational videos but...