I think the best way to deal with a narcissistic parent is to still love them but limit your time with them. Refuse to do their bidding unless you really want to (if you no longer live at home). I think people become narcissistic's because they have unfufilled needs and feel insecure--in other words--the love they have received in their lives was also sometimes toxic and confusing. Sometimes narcissistics deserve compassion but they should not rule our lives.