Welcome, we're glad to have you here.
Alcohol is physically and mentally addictive. It's habit-forming, you get used to consuming, and your body and brain start expecting, alcohol in certain circumstances.
"It's Friday, time for a glass of wine." "It's a sunny Saturday, wheres my chilled glass of rosè?" etc. It will take time to overlay the old habits, the old neural pathways, with new habits. It sounds like you have some old hobbies you can pick up again? That will definitely help. My one rule I never broke, even when I was drinking a bottle of wine a night, was "no drinking and sewing, that's dangerous." And I saved up my booze money and my 1 year sobriety present was a very fancy sewing machine.