I don't remember the last time I bought a soda. The last time I had any was a couple weeks ago when I got a cup of ginger ale on a flight. Before that, I might have bought one in March at a hotel? I vaguely remember getting a soda. I read somewhere, probably Reddit, that discipline is stronger than motivation. Motivations can change, but having the discipline to do or not do something is more firm. I'm going running after work today. Why? Because it's Monday and Monday is a run day. It's overcast and a little cold and there's some scattered rain. I'm not motivated to run today, but my discipline doesn't ask if I want to run. Barring an injury or dangerous weather, I'll run. That's my suggestion for you to consider. It may be easier to be a person that doesn't drink soda than it is to be a person who doesn't want to drink soda.