There are all sorts of E writing words. Ego, Edge-of-your-seat (okay technically that's four words...work with me here). But I went with EDITING because it's a pretty big part of writing.
And also, it's my arch-nemisis. That and spelling.
Editing is HARD for me. There's no creativity involved. I'm not creating anything, I'm torturing something (not just myself). But no one, at least no one that I know, can write a perfect first draft, which is why editing is nearly as important as writing.
And a story should go through many different edits before it's considered done. Grammar and spelling (particularly if I wrote it), content, story arch, pacing...I honestly believe you can never get your story completely flawless, no matter how many times you go over it. Eventually you'll start doing damage, in my honest opinion, and it's time to let that baby fly!