Life will have plenty of big moments. Graduations, weddings, childbirth, promotions, deaths. These are important times in our lives but the little everyday moments, those are what really make up a happy life.
I feel it is misguided to wait for happiness to happen to us. Happiness is something we create not something we find. If that one elusive thing you have been dreaming of finally happened for you, you might be surprised to find that you still aren't truly happy.