Happiness is a journey, not a destination
If you wait to be, do or have something to be happy, you might be in for a disappointment, especially if it was given to you.
Real happiness is in the journey of pursuing the goal.
In that journey, you will feel true happiness when your actions are congruent with your values, when you challenge yourself in spite of obstacles, and when you brighten someone else's path while lighting yours. And in the end, it won't even matter if you reached that goal.