Writing a song is like playing a series of downs in football: Lots of rules, timing is crucial, lots of boundaries, lots of protective gear, lots of stopping and starting.
For me, every day is a new thing. I approach each project with a new insecurity, almost like the first project I ever did. And I get the sweats. I go in and start working, I'm not sure where I'm going. If I knew where I was going I wouldn't do it.