Congratulations on your decision! All you have to do is pass the first few days, which are hard at times. Just have a super-strong will-power to start with until "hunger" (which is just fear mostly) subsides. You will realise after that that you don't really need food, it's a myth! and you won't feel hungry any more, just bored with not tasting food that's all.

(why did you choose a picture of a poor little cat all shaved up?... how awful, the poor little thing.)