That's so cool IslandLass, so glad you had a positive outcome.
I'd skip the one last hurrah too. I have done that alot, but not the last time I quit. I think it always reinforced the idea that I was giving up something I really enjoyed. I remember my last drink but I certainly wasn't sat there thinking how wonderful it was!
I had to host a few social occasions early in my sobriety and although it wasn't an entirely pleasant experience I was really proud to get through them sober. It's ace that your sister is supporting you! I'm sure that will be a massive help x