If you are talking while someone else is speaking to you, you won't retain any information that you were told. If you have a question you should write it down and wait until the speaker is done. The chances are they covered it in the remainder of time.
Practice Active Listening
If you have music, your phone or a TV on you are probably having trouble staying focused. You should put away your distractions so you can focus easier. If you cannot do work for a certain time, you can take breaks.
While taking notes you only need to write down the keywords. If you write down everything, you will miss something even more important.
Sharing Role of Speaking and Listening
Focus on what the speaker is saying. If you disagree, say it nicely instead of arguing and bickering, it will get you nowhere.