I also recommend some doctor supervised practice fasting. It's good to know how your body reacts without food, so you don't get panicked too quickly. Most people won't drop dead from a 3 week fast for example, but will often have "killer" headaches during the first couple of days.
There are always dozens of reasons why something "can't" be done. That's no excuse in my book. If you want it bad enough, you find a way. That's how life works for grown ups. -- Booger
Don't be afraid to be open-minded. Your brain won't fall out.