The Creation of Happiness

What if people looked at happiness as something we create and not something we wait to happen to us. Its an attitude a filter we look through a choice we make. Something we create for those around us knowing serving others creates more happiness than serving ourselves. When we deal with bitterness why do we carry the weight of that persons attitude on our shoulders. Why not just deflect it and have forgiveness for the fact that they are having a hard time dealing with the weight that they are carrying on their shoulders in life.