There’s a reason they say write drunk, edit sober. Your inhibitions should be down while you’re writing and doubled while you’re editing.
Write drunk, edit sober. The reason for this is that writing is a hell of a lot easier than editing. You don’t need your wits about you to write. Writing is the easiest part of the whole process. You lay everything out on the table and then, later on, you can deal with all the issues.
Well, now it’s later on, and now I have to deal with the issues.