Life is getting harder and harder for 'Bolt' star Miley Cyrus in her 16th year, faced with so many of the crises that make our mid-teens such a dramatically turbulent era. Like the driving instructor taking less than kindly to her defiance behind the wheel ("I don't wanna turn left, I wanna turn right!"), all those cheapskate hangers-on who won't buy tickets to her shows, and the father whom the young phenom reduced to a punchline last Friday while in late-night conversation with Jay Leno. It must have been 'Miley Day ' again; these rituals just get more and more painful for poor Billy Ray. [The Tonight Show ]