Success? It's your mindset!

People exhibiting the fixed mindset tend to overestimate their skills, and they focus a great deal of energy to protecting their own self-esteem and hiding any deficiencies and "proving themselves" to others. They tend to shy away from challenges and instead focus on repeating what they already do well. And when things go wrong, they tend to search for places to put the blame.
The growth mindset believes that talents and abilities can be improved through passion and effort. Always. People with the growth mindset are less concerned about image in the short term, and more readily accept difficult problems that challenge themselves in hope of learning and growing. [Source]