How do I stop always assuming the worst has already happened?

You can find the threat no tool caught, and the mindset that makes you good at it, assuming the worst is already inside, is a strange weight to carry everywhere. The stance that protects the network can quietly follow you home, until suspicion is your default look at the whole world. It is worth naming that cost, because it is real. The assume-breach instinct is a professional tool, not a truth about your life. On the job it sharpens you. Off the job, if you let it run unchecked, it can steal your ability to trust, to rest, to take anything at face value. The skill is learning to take the mindset off, the way you would take off a heavy coat when you come indoors. You put it on to work. You do not have to wear it to bed. Build a clear line between hunting and living. When you leave the work, mark it somehow, a walk, a ritual, a change of clothes, a moment where you consciously set the vigilance down. Practice trusting something in your off hours on purpose. The worst being always here is a useful lie for the hunt. It should not be the story you tell yourself about your whole life.