The best writing is rewriting. That means not being easily satisfied and sensing we can make our prose better.
To rewrite means to change our writing so that it becomes sharper and more coherent. That's what moves writers into the professional level.
When we rewrite we rethink what we've written. We admit that some words feel exactly right and we leave them. We delete sentences that don't flow or we add words for clarity.
I say it this way: I write subjectively; I edit objectively. That means that on my first draft I let words flow without censoring or interrupting. Once I finish I go back and objectively correct what I've written.
Effective rewriting is a skill we learn gradually
by going through the process hundreds of times.