@Tfmonkey I think caring about what others think or not caring, for that matter, comes over time; maturity.
Envisioning the goal; model based on Reality are paramount.
Might I include a mastery of emotions, insofar as they are used to focus your efforts. It is hard to stay motivated when you are unsuccessful. Especially after repeated attempts. I think raw talent, or high IQ, puts a man far ahead of a man with just "heart". it is Extremely difficult to compete with a man who is having fun...