DD has never been a great sleeper. Always an early riser, 5/530 for ages but she could catch up with naps. She stopped all naps at 2 and nothing will convince her. She had a lovely phase of waking at 7 but has gone back to screaming until you get her up around 550. Bedtime is 7 but she's rarely asleep before 730. We've tried a gro clock and she ignores it. We've asked her to read books or play with her toys in her room until we come but she won't. Any advice?