My sense, at least for me, is to listen when I have an objective or a goal, such as solving a problem, gaining a skill, clarifying, or what have you.

It would probably be good to give your unconsious mind processing time, and your consious mind an opportunity to notice the benefits in your life emerge....
Unconsious leanting is different than consious learning. if I go too gung ho with this kind of thing, I might not notice the positive changes that are happening.

vitaman