I’ve studied it off and on since high school, but really struggle with speak. I get anxious about the times and accidentally saying something nonsensical. But we had a family show up that didn’t speak English, and I was able to do more than crank out 谢谢。
I would say that as long as you are worried about what’s going on and that you are consciously making choices that make the situation worse, that would already be a lot better than what the average person in a developed country is doing. Neither am I making all that much of an effort to stop it, but I would say every effort, however small, counts. You don’t have to be Greta Thunberg to make a difference. You don’t have to make a big difference - a small one is fine.
As I was writing this comment I also felt motivated by my own words lol. I should start acting more too. I might join protests calling for Israel to stop the genocide against Palestinians. I could also try floating problems like global warming or pollution during conversations with friends so that they know that people actually do care.