dude NO NO NO NO
horrible idea
I can write you an entire thing about milk but i will use the cliff notes. milk is NOT a natural food, it is heavily processed/pasteurized. you are actually going to leech your body of minerals and vitamins by drinking milk
now i can go a step further and say that there isn't a mammal on earth that drinks milk past infancy and humans never drank milk throughout our history until the idea of dairy farming was invented