Welcome Klar,
I sure know the struggle you're having regarding telling your family that you're not drinking now. What I discovered with my family is that I was much more concerned about it, I carried more negativity about it in my head than they did. I also found that they were so wrapped up in their own dramas that my attempts to discuss my "problem" were kinda brushed aside, which was fine by me. I just let it go and now only discuss it with interested parties.
Hope you have a great visit.