I've been learning to pray the "Liturgy of the Hours" (a.k.a., "Divine Office"). I've made progress---to the point that I'm actually praying and not simply puzzling over what to do next.
The Hours are almost entirely a matter of of taking pre-written prayers and trying to make them one's own. Most of these prayers come from the psalms, and I've always had a hard time "owning" the psalms. The effort to move my heart to really pray these psalms, reveals a space, especially in the daytime hours, which consist of mostly "battle psalms".
This space, of course, begs the question, "why?" Why do I struggle to own these prayers?
And, I've found the search for answers to this question to be rather fruitful.