Providence - you're doing great!
Just let things happens without over-thinking too much. I know what you mean about the"habit thing" kick in. Over the years, I'm sure we got used to and auto refill mode. Empty beer/glass/bottle - must be time to grab another, as if we're running out of air or something.
At my point, I am starting to stop and think before getting another, and it's interesting to listen to my body before reacting. When I'm really honest with myself, I find that many times I don't really want or need more - at least not like I used to. However, at your early stage, I think you should just go with the flow. If you think too much, you'll start doubting yourself or TSM, etc. For so many years, you've kept drinking without a tought, so you need to let TSM extinguish that behavior over many weeks. Just keep going, without worrying about what others think, and ignore your brain when you start to feel disappointed. That will only make you crazy, and might even impede your progress. You're on the right track - just have faith, and focus on that. You can do this!
