The only way to increase your skills is to put them into practice. You can only improve your capabilities by performing. You must work hard to improve your writing, athletic ability, and marriage. Professor Anders Ericson published the "10,000 hour rule". This principle was discussed in a variety of books, including Outliers and The Talent Code. Ericson discovered that the top performers, in sports, music, or whatever, had always engaged in 10,000 hours of practice before they reached their peak level of performance.