For my nearly 5 year old:

I will not run into my bedroom and throw myself face down on my bed every time I don't get what I want/get in trouble/the weather changes

I will not try to out-do any number of the Academy Award Winning Actresses at every chance I get

I will not tell Mum that I dislike every healthy food available to man-kind before I have even tried it.

I will eat more healthy food