I would like to add a point of view. In my case I learned to be happy by let going only one thing in life -‘WORRYING ABOUT THE RESULTS’, as said in Gita. That helped me a lot. After all whom am I to decide what’s going to happen. People say live life by a day — make it count. I’m too lazy to think about how to make my life happy by a day to day basis. So, just started enjoying the things that I do everyday. Isn’t it so simple.