What is your guidance to one who suffers from her father's harshness in dealing with her, despite his kind treatment of his sisters' children, and from her brother's seclusion in his room and his isolation from others?

It appears your question is a consultation, not a fatwa, and we advise you to refer to the consultations department.

We will mention some simple guidelines for you:

1. The Great Right of the Father: It is obligatory to be dutiful and benevolent to one's father, even if he is harsh. Lowering one's wing to him and showing affection are reasons for his heart to soften. There is no objection to gently admonishing him or seeking help from someone who can advise him, and praying that Allah softens his heart towards you. Overlook his actions and do not scrutinize them or compare his treatment of you with others.

2. Raising an Adolescent and Internet Addiction: We have discussed methods for raising and dealing with adolescents in Fatwa no. 39057, and about internet addiction and its treatment in Fatwa nos. 45646 and 83123.