Am I just overreacting or does he need to get his sh*t together?

He says I'm overreacting and I just always want my way. So my husband loves a wee drink. If he's by himself he will drink beer, if he has a friend they usually would drink 1 and a half or 2 bottles of whisky. So he says that he's been really good with alcohol, but that's not what I think. Fair enough, he haven't had whisky in probably a month, but he drinks his beer every time he's off work, so one week he's off for 3 days, next week he's off 2 days, he works overnights and he thinks he deserves a drink, so when he's off he usually drinks up to 10 bottles of beer, even when he's working that night sometimes he would have 1 or 2 beers with his dinner before work. He knows how much I hate alcoholic people, cause my dad is basically one of them and I grew up seeing him getting drunk every day, spending money that our family barely had, we couldn't afford anything when we were growing up, cause my dad used to spend money on alcohol and used to lie that that's all he got paid... So I had a bad childhood so I don't want my husband to be the same... Am I just overreacting??