You speak rather poorly of God when praising Him, or when wanting to praise Him, only during that which you perceive to be your highest of moments. That is many a reason behind unbelief altogether: the failed attempt to control God, to lower His standards to one's own level of understanding in doubt of His foresight and omniscience, His goodness and power. He wants to know if you are faithful enough to praise Him even when, to you, all seems lost.