Love this speech by Bill Gurley - one of the common things across top professionals like Bob Dylan, Danny Meyer, etc was that they studied everything they could find about their field, they were masterful students first.
The home run theory of careers:
What matters is eventually hitting a home run, and the way to do that is training hard and a lot of at-bats. You only have to be right once, and it's ok to be wrong a lot of times.
Be bold. Move fast. Work hard. Ignore haters. Keep swinging.