If your happiness or joy depends on the moments or things around you; you will never be truly happy. One minute you will feel like the world is for you! Everything is green grass and rainbows! But as soon as someone says or does something that isn’t what you hoped your world crashed HARD!
The bible says,
The Lord is my strength and my shield; my heart trusts in him, and he helps me. My heart leaps for joy, and with my song I praise him.
He never changes. He loves you and wants the best for you. When He is the source of your happiness and joy; you will not be let down. Rely on Him to be your joy and He will help you to have a song in your heart.