You need your husband on your side so he doesn’t say “let’s have a drink”. Our partners don’t always realise what a battle we’re facing. Let him know, and you’ll have taken a huge step forward.
The first few weeks are pretty horrible with cravings and lack of sleep. It took me a month to feel good. Not wishing to sound like a bully, but there can be no “rewards” in that time or you’ll be back to day one. Bur believe me, you’ll feel better in a few weeks.