No Success Library is complete without Mastery by George Leonard. [Wikipedia Entry] How does one get better at something? You study, you practice, you work at it, you copy others, you get feedback, you make corrections, you learn from your mistakes, you constantly make small, incremental improvements.
In this book, Leonard teaches us how to systematically approach Mastery in anything. It may be a sport, in music, in writing, in a subject, in becoming an expert- the process is the same. You work and nothing happens. You work, nothing happens. You work at it longer, nothing. Then one day: Boom. You make an incremental jump in effectiveness, understanding, skill, whatever.
When you understand this, it is so much easier to deal with your negative thoughts that creep in to your brain, "I'm not getting any better." Yes you are. Just stay at it. Get started, don't quit.
Another gem I take from this book: The world is so big and fast moving it is impossible to keep up with everything. So, pick your field. Keep learning. Specialize and narrow your focus even more. Put in the time. Pretty soon, you will be a genius. And the World will notice.