Peoples of all countries involved in the insane war shall kick their governments out and send all those who caused WWIII to an independent internationals tribunal ( not that corrupted one in Hague)
In my youth, I grew up with the threat of nuclear inhalation. I read everything I could get my hands on regarding how nukes work, delivery systems, circular error probabilities, survival rates...and so on. It consumed my being.....one day I realized wasn't a whole lot I could do if it happened and I moved on.
You need to do the same.
You should watch the movie Doctor Strangelove