Before deciding on the path to take to approach a situation, one must first assess it. Is it worth doing anything about? How will it impact me or others? The overall goal is to be effective when dealing with issues, so make sure you know what you are getting into before embarking on the journey.
The best way to assess a situation is to step away from it. Take yourself out of the equation in order to fully understand what it is about and the effect it will have. This can allow you to make a more reasonable decision rather than one based on emotions.