It's a massive change - but it's not impossible. Many many of us have gone before and made it work
I drank all day everyday for several years - change really is possible no matter how badly addicted we were.
I'd recommend you stop putting fruit juice in the wine bottle tho - while it may be reassuring now, you might actually be mentally reinforcing the behaviour patterns you had as a drinker.
Try your fruit juice in a normal glass - or even a mug - break those rituals
D