Perspective

Consider why some of the experienced people are calm.
The person in front of you has a knife and is trying to stab you with it.
1 there is a hospital nearby and people in shouting distance that might care for me
2 I can see the knife and it is not in me, there is light to navigate and command the surroundings mentally and bodily
3 the knife is clean and smooth, no germs to kill from a scratch no metal teeth to tear up flesh
4 I can choose what to do instead of working a way to get a mission done…

There is a lot to be said about free will and seeing your options. Instead of speaking about it just pay attention.
Take a moment a day to run this thinking feeling moving drill in your head along with your body moving. See the effects over time with your life in general and avoid narrowing it to “fighting”