As the unofficial queen of plateaus, I can tell you this: Ditch the Scale. Put it outside in the garage and leave it there for a few weeks. Switch up your routine somewhat. Do more weights, do less cardio or vice versa. Eat breakfast for dinner. Just do something different.
Like the "devil" and "angel" on your shoulder from old cartoons, I ask the healthy thin person in my head to convince the crazy fat person in my head not to eat that (donut, cookie, candy bar, brownie, etc.) because it is personal sabotage and not worth the momentary pleasure.