First of all, if you are indeed 12, you are too young to be on this site.
It goes along that you are far too young to be determining your own diet plans, and what you outline above is a VERY BAD plan indeed. Growing children should not be subjected to prolonged fasting.
If all you claim in your question here is true, your very BEST course of action is to get sound nutritional advice from a trained health professional familiar with your situation; not seeking affirmation of your misguided plan from complete strangers on sites like this.