Is it this normal to not be hungry?

im 14 and im trying to get 6pacs i did alot of research and found out that its heathly to eat several small meals and to eat breakfest.However i never get hungry i only eat when i come home from school one big meal and thats it for the day. I dont feel like i dont have enegry it just werid to only eat one time a day and not be hungry.