"God is greater than our worried hearts and knows more about us than we do ourselves." 1 John God is more compassionate and understanding toward us than we often are toward ourselves. Our conscience gets in our way, but God is superior to our heart.
Happiness is not the same as joy. Joy is an inner strength that comes from the Lord. Though we may not have the happiest of circumstances - may we always find strength in the joy that comes from the Lord.