Nothing goes in the compost finished. It goes in raw, sits, gets turned over a few times, and only becomes useful once you stop expecting it to look like the thing it started as.
I used to treat a first draft as a rough version of the final thing — smaller, uglier, but recognizably the same shape. That's not what a first draft is. It's raw material, thrown in together without much plan, because the plan comes later, from the turning over.
What finally clicked for me was noticing that good compost doesn't smell like any of its ingredients anymore. In the same way, a piece of writing that's been turned over enough times stops smelling like your first idea. That's usually the sign it's close to done.