Read it for yourself (in Psalm 13):
I. David’s Concerns (verses 1, 2) …
“HOW LONG, O LORD? Will You forget me forever?
HOW LONG will You hide Your face from me?
HOW LONG shall I take counsel in my soul, having sorrow in my heart daily?
HOW LONG will my enemy be exalted over me?”
II. David’s Conclusions (verses 3, 4) …
“Consider and hear me, O LORD my God; enlighten my eyes
LEST I sleep the sleep of death;
LEST my enemy say, ‘I have prevailed against him;’
LEST those who trouble me rejoice when I am moved.”

III. David’s Confidence (verses 5, 6) …
“But,
I HAVE TRUSTED in Your mercy;
MY HEART SHALL REJOICE in Your salvation.
I WILL SING to the LORD, because He has dealt bountifully with me.”
That was one of King David’s prayers. How about Psalm 40 and Psalm 62:5-7? If you need encouragements, help and hope from above, you will be sure to find them here!