My dad is making me fat!!!?

my dad knows i want to lose some weight but he keeps bringing high fat foods home to eat knowing that i have very low resistance to those kinds of food and that i want to lose some weight before the start of the next school year!! it doesn't matter if i burn 1000+ cals a day i can't lose weight because of all the food makes up for it! he's clearly undermining my efforts conciously. what should i do??