How Many Hours Does It Take to Become a Master of Something?

There are two main mind sets that someone can have, fixed mind set and growth mind set. In the fixed mind set, people kind of believe their basic qualities, like intelligence or talent, are fixed traits. I feel like iave a growth mind say, where people believe that they're most sic abilities can be developed through dedication and work. People who believe that are much more likely to actually succeed in learning that thing.