How Do I Know What I Think Until I See What I Say?

I write fast. I type and type until I'm tired of typing, and then I go back and look at what I read and find out if there's anything good in it. It's all perfect, of course, every time, with no needs for revision or changes, because I am super awesome. Duh. See, that's the thing that I've learned - if I'm going to be a fast writer (and I am - writing carefully puts me right to sleep) then I'm going to have to spend a lot of time in re-reading and revision, because otherwise the story is going to turn out to be a hot mess. I'm not one of those people who can sit and think about every word put down on paper as it happens. I can't labor over a sentence for days. It's boring. It's a sentence. Subject, verb, maybe an object or or something and move on! I can't be spending all my damn time on a single sentence. Nothing would ever get done - I have a day job, people. In truth, I probably spend just as much time in the aggregate worrying about wo