This song has been my literal prayer many times in the last 5 years. There have even been times where I would literally sing these words out loud because I was feeling so separated from God by my selfishness. I felt like a failure, making the same mistakes over and over, seemingly stuck in one place as a sinner. In those times I felt like the promise of being transformed from "glory to glory" was not really true for me.
But after asking for forgiveness, I feel God pick me up a bit, and I've got the courage to keep trying. I hope its a blessing to you too!