Perseverance separates the winners from the losers in both sports and life. Are you someone who perseveres despite difficulties and setbacks, or do you tend to throw in the towel and call it quits when faced with a challenge or adversity? What makes some people able to keep pushing and complete a task while others habitually fizzle and don't follow through?From http://www.psychologytoday.com/blog/the-athletes-way/201112/the-neuroscience-perseverance, I suggest reading entire article.
Dopamine is the fuel that keeps people motivated to persevere and achieve a goal. You have the power to increase your production of dopamine by changing your attitude and behavior. Scientists have identified higher levels of dopamine -- also known as the "reward molecule" -- as being linked to forming lifelong habits, such as perseverance.
When I was in college a spent a lot of time doing research in the Library, Sports Physiology Journals contain a lot of useful information on improving if you spend the time to understand what they are talking about.
I also learned a lot about Psychology, much of what is discussed in above article matches what I have learned, sometimes the easy way (ie study), and sometimes the hardway (School of Hard Knocks).
When you can learn the smart way, by study, or from expert instructor it is a lot faster. Because once we do something the wrong way, or right way, we tend to repeat that.