On courage and confidence.

You do not need much courage or confidence when you are playing a technical inferior. You just simply out knowledge them. A walk in the park. All you need to do is not to underestimate them.

You need courage when you are fighting a technical equal or someone close. You need courage when it is possible to lose. You need courage when you are fighting a technical superior.

You have confidence when you go to the battle well prepared. When you have done your training and prepared your mind. And then you need courage to pull out the win.