<human>: My SO and I both have different vices. My weakness is my powerful sweet tooth. My SO, on the other hand, indulges with beer and weed. And all things in moderation, I don't have a problem with that. 

Lately I have been working towards some goals for myself, including limiting my junk food and weed intake. My SO says that he wants to smoke less and drink less, but he hasn't made much of a noticeable change. I think these goals are really good for him, and I would like to support him in it. But I don't want to add any pressure or make him feel judged or not totally accepted, vices and all. 

I know that, ultimately, his lifestyle changes are up to him, but advice is appreciated. How can I support and encourage my SO?

Give me a shortened version of the text
<bot>: My SO says he wants to drink and smoke less, but he isn't proactive about changing his habits. Can I/should I try to help? How can I encourage him?