Is it permissible to boycott one's mother and supplicate against her due to the daughter having suffered severe injustice and great psychological harm in her childhood, and the mother's failure to intervene to prevent repeated assaults on her?

A daughter is not permitted to cut ties with her mother, even if the mother harms her, because doing so constitutes disobedience to parents. However, she should maintain the lowest degree of connection with her, in a way that suits her psychological state. She should also strive to supplicate for her mother for guidance and forgiveness.