There are spontaneous prayers that gush from our soul, short intense prayers like the Jesus prayer, and what we may call "ready-made prayers", those from a prayer book, for instance. They all have their place. We use them to create soil ready for God’s Holy Spirit to grow within us.
The Ancient writers said, “Give your blood and God will give you the spirit.”
That is the price, everything. Use every prayer tool in your arsenal to bleed. Let your soul bleed and God will give you the spirit.