Remember that happiness is a way of travel, not a destination.
Are you happy with where you are going today and what you are doing? If not, why are you doing it? What can YOU change that would make you happy? Maybe your attitude? Ask God for the courage and the will to change in a way that will make your destination today a little happier.
But seek first the kingdom of God and his righteousness, and all these things will be added to you.