Perhaps you and her feel tired with the sleeping pattern changes. Every single mum will feel that way. Guilty hits you hard. I do scold my first and second child. Do I feel guilty yes I do? Then, Ill say sorry, ill them why I am that way. And the next time, I knew I am gonna burst, I pass to someone else, take a breather and then take back the child. If there's no one around, leave them to play until they are extremely tired, try once more and for sure they will sleep. Alternatively, for some they will doze off themselves. Dont feel bad, all parents will have that one day, you feel extremely tired and therefore burst at your child. But if it happened once/once in a blue moon that is okay. But if everytime happened, thats a big No No.