The carnal believer prays and does not know if his prayers are answered but the spiritual man's prayers are answered.
Jesus said, "If you abide in me and my words abide in you, you shall ask what you will, and it shall be done unto you." (St. John 15:7)
Even if you do not hear the audible voice of the Lord yet, you can pray in every circumstances for wisdom, knowing if you are seeking to do the perfect will of the Lord, he will help you.
We are to "pray without ceasing," but few are willing to try. Yet prayer is central to waging spiritual warfare.
The prayers you ought to want to develope in you are made of Spirit, to where the Lord is interceding through
you. If the Lord is praying through you, all of your prayers will be answered.