Generally I procrastinate for an hour or so after breakfast, reading the paper or catching up on correspondence. Then I take a long walk, get my thoughts together and come back to my desk. Then I write for about an hour before lunch, then eat, do a workout, then come back and write for about another three hours before my wife and kids come home. Then I'll usually put in another hour or so before bed, if I'm not teaching that night. But to be honest, it doesn't matter.
Every writer has a different routine.
As long as they spend some time each day writing, that's the right routine for them. I start early. Then I take my ugly dog for a walk in a big field near my house and think about what I m going to write tomorrow. Sometimes I have afternoon writing sessions but nothing tops my creativity at 4 in the morning. Being a writer, I could suggest options on how to condense or cut or modify certain scenes or sequences without sacrificing story or theme, so that what was potential could be become actual.