Here is a specific task for middle aged priests (and beyond, and all involved in edifying others: e.g. parents and all other educators).
Summarizing, synthesizing, appropriating and passing on what you have studied! And composing new material, for the glory of God and the extension of the Gospel.
I need to read the books I have read!
Do not say you do not have time to take notes. You do not have time not to take notes.
Presently our civilization is in an educational emergency at all levels. No one knows how to live or why and it is up to the saints to show them. Christ is the Life and He must be studied in every way in all of the riches of our world and cultural and Ecclesial heritage.
Be an intelligent saint!