Reddit mentions of The Energy of Prayer: How to Deepen Your Spiritual Practice

Yes!!! I totally get it and have struggled with that too. These are the books I'm currently cycling through:

Twenty-Four Hours a Day (not AA, but about alcoholism)

Daily Reflections (AA)

As Bill Sees It (AA)

Courage to Change (Al-Anon, useful for self-esteem issues and building a relationship with a higher power)

Courage to See (This isn't affiliated with any program, but has some great daily readings and is also useful for self-esteem stuff)

How to Love (Buddhist)

I absolutely love Thich Nhat Hanh and want to get the rest of his "Mindfulness Essentials" collection. They're all short books on mindfulness in different contexts (How to Love, How to Sit, How to Relax, How to Eat, How to Walk). I've also heard good things about The Energy of Prayer although I haven't gotten it yet so I'm not sure if it's set up well to be daily reader.

I've also used some Emmet Fox books in the past. Several of them have prayers/meditations in them that I've cycled through in various parts of my sobriety. Here's one I really liked:

"God is the only Presence and the only Power.  God is fully present here with me, now.  God is the only real Presence – all the rest is but shadow.  God is perfect Good, and God is the cause only of perfect Good.  God never sends sickness, trouble, accident, temptation, nor death itself; nor does He authorize these things.  We bring them upon ourselves by our own wrong thinking.  God, Good, can cause only good.  The same fountain cannot send forth both sweet and bitter water.

I am Divine Spirit.  I am the child of God.  In God I live and move and have my being; so I have not fear.  I am surrounded by the Peace of God and all is well.  I am not afraid of people; I am not afraid of things; I am not afraid of circumstances; I am not afraid of myself; for God is with me.  The Peace of God fills my soul, and I have no fear.  I dwell in the Presence of God, and no fear can touch me.  I am not afraid of the past; I am not afraid of the present; I am not afraid for the future; for God is with me.  The Eternal God is my dwelling place and underneath are the ever-lasting arms.  Nothing can ever touch me but the direct action of God Himself, and God is Love."

Thich Nhat Hanh's the Energy of Prayer. Thich Nhat Hanh is an amazing Buddhist teacher, as well as incredibly insightful in just about everything related to the dharma. (Fun fact, he is fluent in 7 languages.)

He talks about meditation/prayer, its practical purpose, and how to do it well.