I found early in life that if a problem presented itself all I had to do was reduce the situation into two mutually exclusive possibilities and to continue this for each possibility into two further possibilities until I got to the final possibility which always ended up with the conclusion that I really have nothing to worry about: don't try to parse that sentence, the following example will suffice to illustrate my meaning.

In this life there are only two things to worry about. Either you will be rich or poor.

If you are rich, there is nothing to worry about.
But if you are poor, there are only two things to worry about.

Either you will be healthy or sick.
If you are healthy, there is nothing to worry about.

But if you are sick, there are two things to worry about.
Either you will live or you will die.

If you live, there is nothing to worry about.
If you die there are only two things to worry about.

You will either go to heaven or to hell.
If you go to heaven, there will be nothing to worry about.

If you go to hell, you'll be so darn busy shaking hands with all your friends, you won't have time to worry!

Not to get too technical but this process of recursive splitting of a problem is called The Sieve of Eratosthenes [Wiki].