The prophet Elijah “cried out” three times to save a mother’s child. Why didn’t he just pray once? Cause it took three times. How many times do you think Elijah would’ve prayed had the third time not worked? As many times as was needed. If you really want a prayer answered, keep at it. When God’s own prophet needed to keep at those prayers, mind you a person who God took to Heaven without Elijah’s death, he never died...then we as mere servants should give as many prayers as we can, word for word if needs be. Cry out. God is listening.