If you find yourself worrying too much, it may help to think of the other people who have similar or even worse tragedies. Once you realise that, then you no longer feel isolated, as if you have been single-pointedly picked out. That can offer you some kind of condolence. 

Although you may not always be able to avoid difficult situations, you can modify the extent to which you suffer by how you choose to respond to the situation.

Transforming Suffering

His Holiness the Dalai Lama.