My daughter has never been a brilliant sleeper. She’s had good and bad phases but mainly not too bad for the past year. She’s now 2 yrs and 3 months and has started refusing to go to sleep. Putting her down has never been an issue before. Now she screams and screams until someone sits with her. It can take hours for her to go to sleep. She still naps for around an hour a day. Sometimes she has no nap and it makes no difference. Have tried earlier bed, later bed. Nothing seems to be working. Incredibly frustrating to be losing evenings to this nonsense. Any ideas?