Psalms 42:11 (NIV)
Why, my soul, are you downcast? Why so disturbed within me? Put your hope in God, for I will yet praise him, my Savior and my God.
Re-read the text. Think about it for a few minutes. Have you praised the LORD today in spite of the circumstances?
Respond to the Lord by yet praising Him, by yet putting your hope in Him . . .even though your soul is sad for the moment. Wait and see what happens when you do this.
Finally, simply rest in the Word of God and in His presence. Abide in the Lord and allow Him to abide in you by and through His Word.