I want to be the biggest loser

I am participating in a "biggest loser" contest.
Can I just say- it's day 3- and I have come to a conclusion. Dieting just doesn't agree with me.

I want a coke. I want a cheeseburger. I have a headache, and I am grumpy.

But I'm not quitting.
I have decided that I want to lose 40lbs. That is to be at *my* ideal weight. Perfection.

I'm doing this in baby steps. Not killing myself. Just making small, healthy changes. Drinking more water. Avoiding sodas as much as possible. Only snacking on healthy foods. Making a conscious effort to excercise and eat good things.

I may not win the contest- but I can't really lose here, can I?