Penelope Trunk, a mother of a developing cellist, sheds light on the processes of achieving a goal. Her article emphasizes the process in which one achieves a goal: steady, hard work, with determination and an end goal. 

Here is an excerpt from her article on Business Insider:

"He learned to practice by changing the rhythm of the piece. He learned to play one note at a time with a tuner. He learned to play each measure with a different metronome timing, and then he played the piece so slowly it took 20 minutes instead of just four.
During these insane lessons where Amy and my son spent one hour on five notes, the more we worked on the art of practicing the more I saw that practice is a method to do anything ambitious and difficult. He learned to create a system and process instead of just focusing on the goal itself."

Read it here: ​http://www.businessinsider.com/my-11-year-old-son-auditioned-at-juilliard-2017-5