I like this scripture idea of yours.
I find that when I have difficulty focusing or concentrating, special passages are my prayers.
Here's a personal favorite;
Isaiah 41 verse 10..."Fear thou not ,for I am with thee. Be not dismayed, for I am your God. I will strengthen thee; yea, I will help thee. Yea, I will uphold thee with the right hand [Jesus ] of my righteousness."
Thanks...m.b.