All those who pray would want to do so effectively so that they receive answers to their prayers. I will here briefly talk about fasting as one of the ways that can make our prayers effective. The rest you can learn from Hillary Turyagyenda’s Prayer Secrets series which is on this website.
The fall of Adam meant the loss of everything that God had bestowed upon him, the most important (loss) being the Presence of God. Since then, God’s number one goal has been to restore His Presence in the life of every individual.