Look at the positive side of every situation.
Think of solutions not problems.
Listen to relaxing, uplifting music.
Watch funny comedies that make you laugh.
Each day devote sometime to reading a few pages of in inspiring article or book.
Watch your thoughts. Start thinking pleasant things.
Always look at what you have done and not at what you haven’t.
Each day do something good for yourself.
Every day do at least one act to make others happy.
Always expect happiness.