How to lead a better life?

People do their job in order to live a good life, this is naturally. Since last year, I have lost my interest in many things, even what I had liked best before. I have thought life was boring and meaningless. I know a man who loves the life may be happy. I wish myself out of this situation and I am enthusiastic about the life and what I do again, and I wish my future is prosperous and bright, I could give my parents, my wife and my children what they need and a happy life.