i'll go first -
1 - you don't have to write your story in order. you can write whatever scenes you want whenever you want, and move them around.
2 - keep a separate "scratch page" document where you can keep the sentences, paragraphs and scenes that you really should delete
Re 2: I keep a “deleted phrases” file for every story I write. As you say, it’s a safe way to “let go” to try new ideas, and I’ve occasionally reused some deleted text when my story changes.
