I have very straight hair. My hair is layered, and when I see my hairstylist, she blows my hair out in a way that volumized and defines the layers, and kind of loosely curls the layers... I have tried to duplicate this at home and CANNOT DO IT! I even bought the same type of round barrel brush that she uses. Any hair pros who can help? What are your tips for getting the perfect blow out? I love the way it looks, but for the life of me cannot do it myself! TIA!