Before we can write our story, we have to plot it (well, actually, we don’t, but doing so is probably the safest method of proceeding). In Hints About Writing A Story, Diana Wynne Jones offers some ideas for how to do this.
(I started writing when I was married and had children of my own. and I think one of the things I wanted to tell people in my books was how to cope with the world when it goes crazy around you. It does that even without a war on, of course.)
Everyone is different and that means that everyone is going to need to write a story in a different way. You have to discover how you need to do it. There is no easy way. You can only discover how to by doing it. These hints are to help you find your own way.