The noted New Yorker writer Malcolm Gladwell’s 10,000hour rule theory in his Outliers: The story of success says that the key to success in any field is, to a large extent, a matter of practicing a specific task for a total of 10,000 hours which means 20 hours of work in a week continuously for 10 years. So genius may not be the only one or main ingredient to be successful symphony of a person’s life.
Gladwell cited the story of Christopher Langan who ended up working on a horse farm despite having an IQ of 195 vis-à-vis Albert Einstein’s score of 150. The writer blames the environment in which Langan grew up: ‘No one –not Rock stars, not professional athletes, not software billionaires, and not even geniuses--------------ever makes it alone’ he writes.
In contrast, Eastern traditions tend to attribute such results to innate or intrinsic causes or disciplines. The Bhagavad-Gita, for example, cautions against unintelligent (tamasic) or over passionate (rajasic) effort. The best results flow from Satvic practices: dispassionate or detached effort, abhyasa backed with vairagya.

So practice makes perfect but don’t loose your control-----------it takes time.

Each and every person has more spare time than he thinks. Most people don’t use their leisure time optimally. One reason is mental pre-occupation. If one loves his job, is self employed or thrive against impossible dead lines, one need to spend lots of time thinking about his work and not  to spend big chunks of leisure time in most frictionless ways------watching T.V., for example.