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. ↗
I try not to worry about rewriting books that worked well the first time. I'm too busy writing new books to worry about things that are already in print. ↗
I have a bad tendency to get rapidly bored with my own material, so rewriting is hard for me. I mean, I already know the story and would rather read something new. ↗
Rewriting is a large part of the whole job. And get rid of stuff that's not working. Just pare it down until it's a beautiful thing you can hand in, probably late, to your editor. ↗
And after you've done the acting, there's a lot of places you can put your input - in the editing, in the production of it, in the rewriting of it and so on. ↗