It is no use to obsess about it. From all you know... bad things may happen... but it is no use to worry about them. Because usually something else happens that you expect.

Live in the moment more. And remember, your feelings is something you may more or less control, as opposed to external events.

I have a slogan "hope of the best, be prepared for the worst". Have a back up scenario, but do not expect it to happen. You know just in case... just the way public buildings have alarms system and fire extinquishers in case something happen, but nobody actually expects that they will burn down any time soon.