Happiness isn't about getting what you want all the time. It's about loving what you have and being grateful for it.

Proverbs 16:20

He that handles a matter wisely shall find good: and whoever trusts in the LORD, happy is he.

Psalms 37:4 

Delight yourself also in the LORD: and he shall give you the desires of your heart.

Ecclesiastes 3:12

I know that there is no good in them, but for a man to rejoice, and to do good in his life.