Stagnancy

Been having a lot of trouble writing lately. I'd like to say it's because I've been so busy with work and things, but that doesn't really feel like a valid excuse when I've had plenty of time to dick around on the internet and play video games. In actuality I've just not been pushing myself as hard lately, for whatever reason. It could be because I'm just growing weary of editing my book; I've been doing so for about nine months now, and-- if I'm going to be honest-- it hasn't really improved from the first draft since then. I mean, it has, but the changes are so small when compared with what I've still got to  fix or improve. I've grown so much as a writer since my rough draft, and every time I look at my book I see things that I really need to change. And that list keeps growing the more I learn. Will I ever be happy with it?