Read this article from Life Optimizer.

“I just finished reading the book Outliers: The Story of Success by Malcolm Gladwell. It’s a well-written and thought-provoking book on the topic of success. Among many interesting ideas in the book, there is one I’d like discuss here and that is the 10,000-Hour Rule.

The rule says that you need approximately 10,000 hours of practice to become a world-class expert in a field. Outliers shows that the rule applies even to geniuses like Mozart and Bill Gates. There is no other way: if you want to be a world-class expert in your field, you must do your 10,000 hours of practice.”