Have a practice of setting up to pray the divine office. Many people light a candle, and there are other such practices.
Spend a couple of minutes before the divine office just resting, do not go from whatever you were doing to picking up the books. Stop what you were doing. Spend time in stillness. Then start the divine office.
Pause periodically during the divine office to contemplate what was just read before going on.
Compare the ideas in the passages. For example if a part of the divine office has a series of ideas in order, represented for the sake of illustration as 1, 2, 3, 4, 5, 6, try to see how idea 2 is related to idea 4. Next time think about idea 1 and 5, for example.
Place yourself in the passage, place your day, your family, your life in the passage.
At the end of the divine office, spend time in stillness and contemplation. I sometimes view the divine office as coming in two equal halves. Equal in terms of importance. The first half is praying the divine office. The second half is the time spent in stillness afterwards. Not for the same amount of time, but until it all sinks in.
God bless you. Keep it up, you are on the right track.