If it is interfering with your work or personal life, or affecting your sleep or appetite, consult a Psychiatrist immediately. Anger issues are usually an indication of an underlying problem which needs to be addressed further

Hello This seems to be your personality of getting angry on small issues. These issues bother you to the extent of disturbing your sleep at night. You should try to be more practical  in judging the situations before getting angry on them. Human beings make mistakes and its part of our lives.There can be genuine reasons behind a person not picking up the phone. You should try to calm yourself down during such incidents by indulging in more positive thinking.

I think, you are living others thoughts rather than focusing about yourself and your future. By learning to lead only your life and activities, you can lead a cheerful life.