You begin with the worry. Something bad is going to happen.
At this point, may you be reminded of Mark Twain once said. I’ve had a lot of worries in my life, most of which never happened.
Once you understand that most of your worries never actually eventuate, then, ask yourself, ‘Is the thing that I’m worrying about within my control?’ If it’s outside your control, there is no point worrying, as I’ll go on to explain. If it’s within your control, then do all you can to prepare yourself until you’re left with only those things that are outside your control again.
Then, remind yourself, ‘Everything that happens, including the thing that you’re worrying about, is either endurable or not. If it’s endurable, then endure it. Stop complaining. If it’s unendurable…then stop complaining. Your destruction will mean its end as well. Either way, your worry goes away.
So why worry?