Good luck on your quest to change your body and your life.

A word of caution though: Eating nothing for and extended period of time, besides causing other health issues, will literally make your muscles eat themselves!! You see, when you starve yourself (of protein in particular) your muscles go into a catabolic state, and they start to break down. As this happens, your basal metabolic rate (the rate at wich your body burns calories when you are at rest) goes down, which makes it progressively harder to reach your fitness/weight goals. All I am saying is that muscle mass is good, and losing it bad. Al least eat some protein, like egg whites or some chicken breast.

Good luck!