Eventually the bad stuff I'm writing turns into better stuff. Other times, I've just walked away from what I was working on, and figured I'd have a better perspective when I came back to it.
Royalties are not how most writers or musicians make their living. Musicians by and large make a living with a relationship with an audience that is economically harnessed through performance and ticket sales.
I am very disciplined in my life and very up front. It is the only way I can do it and do it well. I am up every day at 7, and I feed my kids, no matter how long the day was.