An important key in answered prayer and receiving from God is --The Abiding Principle.
Jesus taught on this in John 15 Chapter. Verse 7, He says, "If you abide(remain) in me and my words abide(remain) in you, you shall ask what you desire, and it will be done for you."

The promise of success is guaranteed, if you abide in Him and obey His commands. Joshua 1:8 admonishes us to not allow the 'Book of the Law" (God's Word), to depart from our mouth, but that we are to meditate upon it day and night; being mindful to do exactly what it says the way it says to do it; and then we will be prosperous and have good success.