Hitman, Ted is absolutely correct. It is very difficult to get an efficient practice session done in just 15 min a day. I suggest that you discuss with your teacher why he only wants you to play 15 minutes a day. If nothing else, practicing on your own 15 min a day doesnâ€™t even prepare you for the two hours you say you are paying him for. It might be time for you to find another teacher. In any case, I would like to see you practice at least 30 min a day, preferably 1 hour. Always start with your warm up, and always start your warm up with breathing exercises.