I used to write my books at night when I was a freelancer with no children. I used to really work in huge spurts - I could turn around a revision in two weeks, I used to be able to write 10,000 words a day. It's like, 'Wow, what happened to that?' That's just gone.
It took me about 12 years to reach my million-word mark. The challenge now is to continue to challenge myself.
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.

