You deserves happiness, even if you don't have full reasons to be happy.
Some people believes that
Happiness is the highest level of success.
Sincerely, I at same time can't agree less because they derives happiness from their achievements.
But in addition I also believes happiness is self decision.... That is, you can chose to be happy even when you don't have full reasons to be.
I agree with this article. We all have different choices but we are the ones who get to decide what we think is right.