I write every paragraph four times - once to get my meaning down, once to put in anything I have left out, once to take out anything that seems unnecessary, and once to make the whole thing sound as if I had only just thought of it.
Putting down on paper what you have to say is an important part of writing, but the words and ideas have to be shaped and cleaned, cleaned as severely as a dog cleans a bone, cleaned until there's not a shred of anything superfluous.
People think that writing is writing, but actually writing is editing. Otherwise, you're just taking notes
To write is human, to edit is divine.
Editing is just ongoing. I don't count drafts, or know what would fully constitute a draft. But I try to fix as I go. And there's always more to fix.
A good edit process turns rocks into diamonds, and every author should love that part as much as the creative phase. I do love it. It's a different side to writing. It's like the fine-tuning.
Polishing: a useful lesson for the hopeful writer. You say your tormented prose doesn't read as well as mine? Neither does mine, at first!