Happiness is a state of mind

And you may not realize until you arrive at what used to be a far off destination.

Achieving goals and getting what you want does not ensure happiness. When the goals have been reached and have gotten what you set out to the quick realization that a lot was 'traded' or 'sacrified' to get here and a lot of time was spent striving for the ideal which only leads to more goals, more wants, more desires.