One thing we must remember is that if we wait for others to change then we will be disappointed.  The change you can bring is in you. If you want to feel more contented with life then live by the serenity principle -  oh lord, grant me the courage to accept that which cannot be changed, the strength to change that which can be changed, and the wisdom to know the difference.  See a psychiatrist who will help you understand what you are going through.