There are so many posts like this one, and so many of them are dull, repetitive, or full of shit, but I thought Rebecca Solnit’s 10 Tips on How to be a Writer hit the nail on the head.
2) Remember that writing is not typing. Thinking, researching, contemplating, outlining, composing in your head and in sketches, maybe some typing, with revisions as you go, and then more revisions, deletions, emendations, additions, reflections, setting aside and returning afresh, because a good writer is always a good editor of his or her own work. Typing is this little transaction in the middle of two vast thoughtful processes. There is such thing as too much revision—I’ve seen things that were amazing in the 17th version get flattened out in the 23rd—but nothing is born perfect. Well, some things almost are, but they’re freaks. And you might get those magical perfect passages if you write a lot, including all the stuff that isn’t magic that has to be cut, rethought, revised, fact-checked, and cleaned up.
Thank you to Jane Rawson for the heads-up.