Changing is not just changing the things outside of us. First of all we need the right view that transcends all notions including of being and non-being, creator and creature, mind and spirit. That kind of insight is crucial for transformation and healing.
There is no progress in prayer without progress in faith, a purification of faith. And this entails the removal of all the props which depend on human endeavor, human reasoning, signs and the rest. It is the naked faith which is a terrifying experience and yet is the meeting point ultimately between God and ourselves in the depth of our being. This experience of the purification of faith is not normally one which comes early in the spiritual life. We must learn to wait.