I don't think that anyone seriously fears that the world can be blown to pieces all together. But what one can fear and rightly so are regional things like in the Middle East India Pakistan the Korean Peninsula borders in Africa etc.
I developed a mechanism so that whatever mistakes I made I would bounce straight back. Whatever was happening off the pitch I could put it to one side and maintain my form. Call it mental resilience or a strong mind but that is what we mean when we talk about experience in a football team.