Editing is painfully boring - going over each sentence and word, reading it aloud until you are cross-eyes, looking for better ways of saying things. I find it difficult, mostly because I start to question whether I need a particular word - sentence- paragraph - actually, what the hell is this chapter for, anyway? If I'm not careful, the chapter can be whittled away to nothing. Somewhere along the whittling process is an improved draft, but it's tricky knowing when to stop.
I'm reading my Revision and Self-Editing book, but it doesn't make the process any easier! I've done chapter 27, and am working on chapter 28. That just leaves chapters 1-26 and 29-end to do. Sigh. Distractions beckon - I have wiped out legions of zombies this morning, and eaten too many cookies.