I'm on Day 10 here (started Jan 1) and can relate to you with the moodiness. I wasn’t even sure what was causing the moods (work, sleep, ect) but now I think it’s related to the not drinking. I wasn’t a daily drinker but every 3rd day or so, I would drink to relieve bottled up stress and feel good, and it even seemed to have a therapeutic effect for couple days after. Now my body/mind aren't getting that periodic complete relaxation and distraction from work/family, so I’ve been using exercise which is helping.