Why did Esther lose control in the bathroom Orphan?

In "Orphan," Esther loses control in the bathroom due to the intense pressure of maintaining her carefully constructed facade and the fear of her true identity being discovered. The moment represents a breakdown as she grApples with her dark impulses and the need to assert dominance over her surroundings. This emotional turmoil, combined with the stress of her situation, leads to an explosive reaction, highlighting the psychological complexities of her character.