How can I help my sister who is unable to pray and finds it burdensome, especially after it became clear that she was affected by magic, and she complains about her marriage prospects being hindered?

Deviations must be addressed with gentleness and wisdom, strengthening faith and rectifying hearts, while emphasizing the importance of prayer and the grave danger of abandoning it, which is considered disbelief. It is also necessary to provide good companionship and avoid bad one, and to pay attention to adhkar (remembrances) and ruqyah shar'iyyah (Islamic exorcism/incantations) for protection from evils. As for marriage, it is achieved by making abundant supplications, maintaining chastity, and reducing the mahr (bridal gift), with the permissibility for a woman to offer herself in marriage to a righteous man through her guardian.