"Here is a good test of the depth of your prayer life: 
how much of your time and energy in prayer is spent complaining about the circumstances of your life and asking for things to be different, 
and how much is spent in giving thanks for God's overwhelming goodness? 
The more clearly we see who God is and the great things that he has done for us, the more consistently our hearts will be moved to praise and thank him, whatever our external circumstances."

(Iain M. Duguid, "Daniel")