When there is an issue you have no power over and you have nothing to do but obsess over it, its healthy to find other things to do. That's what I did. Ultimately that's why I joined the military, so I had things to occupy my thoughts other than a dozen what if scenarios of things in the past that I was incapable of changing.

Sometimes the your world just falls apart and you can either stand confused in the wreckage or look for something else to move you onward.