“I didn’t really know how to write songs. I knew I wanted to write songs, but I didn’t know exactly, did you just wait around for inspiration, you know, what was the deal? I learned through Jackson’s [Rock and Roll Hall of Famer, Singer-Songwriter Jackson Browne] ceiling and my floor exactly how to write songs, ’cause Jackson would get up, and he’d play the first verse and first course, and he’d play it 20 times, until he had it just the way he wanted it. And then there’d be silence, and then I’d hear the teapot going off again, and it would be quiet for 20 minutes, and then I’d hear him start to play again … and I’m up there going, so that’s how you do it? Elbow grease. Time. Thought. Persistence.” – Glen Frey, Rock and Roll Hall of Famer and Founding Member of the Eagles
So it is in songwriting as it is in kung fu (or any skill you want to perfect). If you want to develop in any arena, it requires persistent effort over time with conscientious, deliberate thought and desire for perfection.