I wish I never heard of your "time management" and your "quality time". I wish instead you would go beyond time. Then you will have all the time in the world! In such a timeless state it is impossible to do anything that is not perfect, and waste is never a concern.
And then I hear you talk of the importance of concentration. If only you would concentrate on not concentrating! With all your efforts you only concoct for yourself a deadly concentrate. Let it go to the winds! Let it evaporate harmlessly away on the strong and fresh ocean breezes. Be rid of your burden!