How many times a day is a person suppose to eat?

I only eat once a day and i sometimes cant even eat that because im never hungry. I am changing my diet now and i am going to eat everything i can. Im going to start eating crazily so i can gain as much as i can. How many times a day do you eat as well? And im not anorexic people always say that because i said i dont eat often. Anorexics dont eat because they are afraid to gain weight, I am the exact opposite it would be my dream come true to get some meat on my bones. I only dont eat as much because theres barely food in the house and i got use to there being no food and so my stomach has gotten use to this type of lifestyle so i never know when im hungry until im on the brink of passing out. Sad but true so help me please.