God, modern society, anything deemed not normal, by usually arbitrarily anal people who are "below" normal anyway, is somehow wrong.
Most "alcoholics" don't have a problem with alcohol, they have a problem, and they use alcohol to hide from it. It's rarely dealing with the alcohol intake, but talking about their actual problem that helps them reduce/cut out drinking.
But people can't ask for help, its a universal thing, we don't talk about what troubles us, society makes up a new problem, that's somewhat socially acceptable, to enable people to get together to talk about their problems and "get better".
IE, your average guy at work is seriously depressed but wouldn't ever talk to friends/co-workers about it, nor go to group therapy. Same guy drinks to get away from his depression, becomes alcoholic, and its almost completely socially acceptable to go to "group therapy" under the guise of AA, and talk about all the same problems, and feel better but still pretend its not depression or whatever else they are really fixing.
Society is so ****** up and stupid.
To the op, several things jump out from what you said, your apparent heavy drinking doesn't effect you daughters at all, or your wife? How and why not, what are you doing on friday/saturday nights, are you drinking at home because you are bored, unhappy, have nothing better to do? Why aren't you going out with the wife with a few friends for , a meal, the cinema, whatever else?
The statements seem completely contradictory, in your downtime starting friday night, you get hammered and it doesn't effect anyone in your family, this only says, you aren't spending friday and saturday nights with your family, and probably hangovers may be an excuse to sleep in and also not spend much time with them on sat/sunday. None of that screams happy, most of that screams hiding and not spending time with them, or simply being bored and being in a rut of doing nothing either with your friends or with your family on those nights.