I can’t tell my Dad I hate my Shenyang stepmom.

When my Dad introduced me to her new girlfriend, I did not like her instantly. More so when they got married. It was the saddest day of my life. I love my Dad but I can’t be happy for him. My Shenyang stepmom is an evil. She acts like an angel with my Dad’s around but when he’s not, she always acts like the queen of the house. She treats everyone in the house wickedly, including our housemaids, dogs and me. I hate her so much! I hate Shenyang women because of her! Surely, my Dad won’t believe me when I tell him how terrible she is. I can’t stand living with her; I might kill her. What should I do with that woman?