What advice does seddit have about perfecting confidence? I've got a solid level of confidence that I think stems from a general satisfaction with my sense of direction and purpose in life, but I know that I can be so much better.

What I have now could be described as a playful cockiness, but I'm interested in becoming a man with a completely unshakeable sense of confidence and conviction. Is this just something that happens over time, or is there some good literature/advice that might help me out?