Exercise. It's the silver bullet.
Maybe anxiety is just some kind of exercise-deficiency. After all, we were made to move around, it's entirely plausible that many biological processes in our bodies just don't work well while sedentary and our anxiety is trying to tell us that.
Muscle contractions function as the heart for our second circulatory system.
https://en.wikipedia.org/wiki/Lymphatic_system
A few animals have an actual second heart for that, but we don't—we have to move to make it work well.
https://www.sciencedirect.com/science/article/pii/S003331828...
I am much less anxious on the days I don't exercise. I still do it nearly every day because I want to stay healthy.
What works for me? Good old SSRIs. They are my silver bullet.