Stomach bugs will attack you out of nowhere. There’s nothing you can do to avoid them, and they are awful.
But living your whole life in fear of the next stomach bug, or fixating on the last one, is no way to live at all.
It’s the same with market drops of all sorts. They happen. They range from “no fun” to “existential crisis.” But they’re never forever, and being an investor in constant fear of them is no way to live.