12 pounds in 11 days is aMAZing!!! :O
Veggies are very important in providing nutrients, keeping you regular, giving your body good carbs (minimally), and starting to teach you good habits. Can't live without veggies!!
Cut out the crystal light and diet coke, usually both are made with aspartame which is not only a known staller, but really bad for you anyway. I find the less soda I drink (even those sweetened with Splenda), the more I lose.
I know its hard to be patient, cause lord knows i'm not, but this isn't a race. Its a way of life. Racing towards your goal is cool, but doesn't teach maintenance so you don't end up back where you were when you started (like, where you are now).
Best of luck to you