There various things in this world that are assumed to be the source if Joy. Truly, some of them will geant you temporal happiness. The fact is, even the richest fellows in the world are still working to get more money literally meaning there is no amount of money that is enough.
There is always an emptiness that can only be filled by God. He should be the source of your joy. There's a river whose streams make glad the city of God. The joy that God gives, the world can not give it. Therefore always be encouraged in the lord .He knows you by name and he has written your name on the palms of his hands.