While you may be aware that you're anxious, part of the point of things like mindfulness is that not everyone is aware of what their autonomic nervous system is

While you may be aware that you're anxious, part of the point of things like mindfulness is that not everyone is aware of what their autonomic nervous system is doing to them, because it functions largely unconsciously. So it's helpful for many people in some circumstances to notice what their body is doing, and then pick up practices that engage the parasypathetic nervous system and calm down a fight or flight response in cases where it is silly and unhelpful--say when one is in a airport, rather than confronting a large carnivore in nature. And, perhaps, you can appreciate that the sooner one notices what is happening subconsciously, the easier it might be for some people to "put out the fire" of their autonomic response. Even if getting good at this might take practice. Maybe this awareness and these tools are not things of interest or value to you, but they don't seem to be things that are that are that hard to understand abstractly, even if you don't practice them.