Congratulations on your 7 days, FreeDance!
If your friends offer you awesome wine they are sure to have even more awesome water. Just think of that cool, refreshing, delectable ice water. I cut way back on my soda consumption back before I quit drinking. Now if I really want a liquid treat besides water, tea, or coffee, I splurge with a sprite or maybe if I'm feeling randy, perhaps an energy drink.
I wish you all the best!