Instead of finishing my own book , let me recommend three to you as better than anything I could write:
Henderson, Daniel. “Transforming Prayer – How Everything Changes When You Seek God’s Face” Bethany House Publishers, 2011.
Henderson, Daniel. “Old Paths, New Power: Awakening Your Church through Prayer and the Ministry of the Word” Moody Publishers, 2016.
Kendrick, Stephen & Alex Kendrick. “The Battle Plan for Prayer: From Basic Training to Targeted Strategies” B&H Publishing Group, 2015.