How exactly do i handle this?

every night my parents fight. my dad calls her and me horrible things and always makes a big scene. we don't have alot of money currently , so we try to limit our spending, but then my dad goes and spends money on all of this stuff, leaving us barely enough money for foo, then he blames it on us. he also gets drunk every night, and i cant bring any friends over because of it. also, when hes drunk, he tends to get really angry. im so tired of it. i HATE that he always has to pick a fight always brings me into it. every night is a living hell. what do i do? i still love my dad, but im so sick of the fighting. help!!!!