Comfort and control on steeper terrain can come from a few tips or tricks to feel it out safely. First of all Bennett was right on STAY LOW that means bend more at the knees not the waist. This will lower your center of gravity and put more pressure on edges through your turns. Another thing to do is start controlling your speed just with turn shape and size. You don't need a steep hill for this just make your turns longer and narrower always pointing the board downhill. Last but not least always remember while learning you don't have to do everything perfectly the whole way down. Just try and do two or three faster turns then stop two or three more then stop. When you get comfortable with that try doing three or four turns. Im sure you get the point, have fun, stay safe and good luck!