There is the old story of Robert Johnson, who legend has it that he was so brilliant because he sold his soul to the devil on exchange for talent.
One of his peers was asked whether this was true, and the guy said "I don't know about that, but this I do know....he practices a lot".
Hendrix, had his guitar with him all the time from a kid, his father wasn't that encouraging, but he practiced all the time.
And before it all starts, I don't care what anyone thinks of Hendrix, it's just a point I'm making.
Some people have the talent for practicing........it's an undervalued talent, but the most important in my opinion.