The Paris Review is well known for its interviews with well known writers. Much of the text from these interviews is available online. Below is such text from Joan Didion.
When I’m working on a book, I constantly retype my own sentences. Every day I go back to page one and just retype what I have. It gets me into a rhythm. Once I get over maybe a hundred pages, I won’t go back to page one, but I might go back to page fifty-five, or twenty, even. But then every once in a while I feel the need to go to page one again and start rewriting. At the end of the day, I mark up the pages I’ve done—pages or page—all the way back to page one. I mark them up so that I can retype them in the morning. It gets me past that blank terror.