I understand that we do not live in a vacuum. Yes of course we respond to stimuli, that's part of what it means to be alive. What I am advocating for is more agency in your own life.
You are the one in the drivers seat. Act like it and your life will be better. Pretend you don't have agency and your life will get worse. It's really that simple. I think that's why your original comment triggered me so much.