I used to genuinely believe that being happy came from having money, being slim, being in love, but I found out that was SO not the case. Happy people are not always free of doubt, on the contrary, as they do not claim to be perfect, but here's the thing they have a different mindset to other people.
If you are not living the life you want to be living, then firstly get rid of the idea you can't as generally the biggest obstacle is your mind set, so that has to be changed. The best way to measure success is by your own happiness and if you are not happy take a look at why and how you can begin to make changes.
Today is the International Day of Happiness, a day set aside by the UN to recognise that the "happiness and well-being of all peoples" is a fundamental goal of development. This year, as it falls on a workday, it begs the question of whether happiness and well-being are issues that organizations should take seriously.