Picture yourself standing at the open door of your garage. Spread out in front of you are the thousands of parts of an eight cylinder engine. You have to put it together. No hints, no help, no manual. It can't be done.
Writing is like that.
You've got thousands, millions, of words spread out in front of you all waiting to be assembled into some wonderful kind of machine that will that will work efficiently and silently in the background of the reader's mind. Something that will turn over and start right up when the reader looks at the first sentence. And will keep on running smooth and fast right up to the last word in the last paragraph. Taking the reader from here to there on a ride to someplace new. Maybe even making their life a little better in the process.