Fear is the bane of man.
From an evolutionary point of view, anxiety has an important function. It protected the person in dangerous situations by sharpening his senses – for example, allowing him to flee quickly.
Today, however, you are no longer attacked by any wild animal. In many, indeed in the vast majority of cases, anxiety does not cause anything but a waste of energy.
Therefore, practice yourself in serenity instead of always imagining the worst.