Having an optimistic attitude can mean the dissimilarity between living a life full of contentment and happiness and living a life full of despair and sadness. Your attitude will determine what you will practice in life regardless of the actual situations. If there is one thing you can work on that will change your life, it is your attitude. Always feed your mind with positive substantial, you will develop a solid optimistic attitude and once you have that, your life will never be the same again.