Keep at it, Charli.
That is great.
I told very few people that I had stopped drinking.
Mostly because I was afraid that I would relapse, and then what?
I didn't, but I don't regret keeping cards close to the vest.
It's really no one's business but yours.
And, as you say, if your family didn't know how enmeshed you were, they can't really be all that supportive.
People will notice that your appearance is better, and that you are different than before.
They just won't know why.