So you are at the stage where you know it’s an issue.
The problem you have is by doing it with him you have made it “acceptable” to do and he knows no different.
The debts start mounting up and the use increases. You need to address it now or it won’t get sorted but no offence it has gripped you.
One week off won’t be enough.
Routine (go bed on a set time wake up a set time)
Eat healthily (3 meals a day whether you are hungry or not)
Exercise (get out go on walks stay hydrated and eat l)
Cut alcohol for a few months its definitely the biggest trigger
Glad you’ve gone for help do these things and it will make stopping easier. Plenty of multi vitamins
You can do this. Does your partner want too though? If either of you doesn’t it’s gonna be a battle…