Have you ever gone to McDonalds's and got a Whopper?
That will never happen.
Whoppers are not available --at any time-- in a McDonald's.
Sometimes things are not there but we may look for them anyway.
If your life is going along well, don't stop and conjure up potential problems.
And I bet you can imagine some 'whoppers' of problems.
Write your life story and don't see what's not there.