Promoted over co-worker;marital strife hurts teen; roles

Dr Julie Helmrich, famous Shrink'n'Drink psychologist from Milwaukee, answered these questions: 1) promotion might lead to hard feelings among previous co-workers, 2) train myself to learn in a traditional way, 3) 13 yr old sister escaping to my place because our parents fight all the time; how to help sister and the situation, 4) interpersonal world vs. world of roles