Doa for happiness

"O Allah I am your slave and the son (or daughter) of Your male slave and the son (or daughter) of Your female slave. 
My forehead is in Your hand.
Your judgement upon me is assured and 
Your decree concerning me is just.
I ask You by every name that You have named Yourself with,
revealed in Your book,
taught any one of Your creation, 
or kept unto Yourself in the knowledge of the unseen that is with You,
to make the Quran the spring of my heart,
and the light of my chest,
and the banisher of my sadness,
and the reliever of my distress.
Amin"