God knows. You would find that you can truly pray, when your daughter is ill, or your dear friend's mom has died, or you are truly financially broke or God forbid, you are lying on a hospital bed struggling for your life.
Set prayers are useful, yes, but true prayer is devotional, not conversational. Without an inner cry, it is almost impossible to please our Lord. A salvation prayer is any prayer that springs from the heart, accompanied by patience and love, and is prepared to wait for all eternity. Prayer begins when human capacity ends.