For what it's worth, I was once a serious meat-eater and couldn't imagine life without it. In a way it was part of my identity. I was the one people wanted to cook meats for holidays, I liked curing meats and making sausages for charcuteries, always smoking things, making elaborate broths and other animal-based preparations, fishing, hunting. Now I couldn't care much less. Something I was certain was true turned out to be patently false, and being on the other side now it's hard to imagine having the same belief again.

I'm not trying to overtly convince or coerce you here. I wish I'd more seriously considered the possibility of changing sooner, though. I suppose I maintained my status quo a little lazily for quite a long time despite caring about the possibility of change.

Having said that, the change you've already made makes an enormous difference in the scheme of things. Christ, I remember having meals where I would eat almost exclusively meat. Like an entire chicken after lifting weights or running particularly far. Totally excessive and bizarre in retrospect. Anyone eating moderately as you described has already shifted towards something resembling sustainability; it isn't really a problem in the scheme of things.