LOL! I hear you! After months I thought I'd finally gotten it the way I wanted it, but I always find something that isn't quite right. Then that bugs me until I can fix it. Sometimes I can just sit back and enjoy, but at other times all I do is scan through, carefully looking for little things that aren't quite right, something out of place, a midground plant outgrowing a background one, some riccia coming up, a bit of algae here, it never ends. But then, if it did, I would have gotten bored with the hobby a long time ago.