The take home message of this video:
1) Just start writing. At some point after the planning, you must start writing. It's important to remember you will come back and change your beginning.
2) Editing happens. Editing is a part of the creative process, not something that happens outside of it. You are supposed to make changes. They are supposed to be big. It's normal.
3) Be kind to yourself. Kill the darlings in your manuscript when editing. Don't kill yourself! You haven't missed the mark simply because you needed to make big changes. You're just finding the perfect path to tell the story.
4) Share your thoughts about writing a novel's beginning!