The one who has the confidence to process problems or challenging situations is the one who faces them with courage. He never tries to escape the challenge. Nor does he try to suppress the thought about the problem. He instead uses all the available resources for constant growth.
When you understand why the challenge has come you may be able to remain content and will be free from waste thoughts or questions about others.
See a solution in each and every problem. So the problem doesn't remain a problem and don't suppress thoughts that might emerge at a later time.