What should my aunt do, given that she suffers from family instability and problems with her children, believes the cause of this to be her mother’s curse upon her and sorcery performed against her, and does not wish to resort to charlatans?

It is recommended to fear Allah the Almighty, and to perform Ruqyah شرعية (Islamic exorcism) for those who suspect they are bewitched among their family members, or to seek a reciter (RaQī) to perform Ruqyah for them. It is not permissible to go to charlatans and sorcerers to seek Ruqyah. Parents are warned against the danger of supplicating against their children, as the Prophet (peace and blessings of Allah be upon him) forbade that.