Assistance with organization and workflow

Hello,

I have been writing for a year or two now, and I consistently use Pages for the easy sync between iPhone and MacBook. I used to just use Notes so I’ve moved up.

But my question is this: how do you keep up with your story physically? I think about a certain part in my 40,000 word first half of a book and I can’t find it to make changes or add something. I get so overwhelmed with the massive lines of text and pages.

How do you all stay organized for edits and fixes??