Im angry with god....?

When I was about 8 years old my mom got a boyfriend. At first he was really nice to me. Then a few years past and he started to change. I remember every time my mom left for work he would say to me "your mine" and I'd beg my mom to not go to work. He'd choke me punch me kicked me because his kids were taken away from him. He said he liked to make me suffer the way he is. He made me lie about the marks I had. He said if I told anyone he'd kill me and I believed him. I remember being 11 years old and saying I wanted to kill myself. Most kids that age were playing barbies and being happy. I was at home crying my eyes out thinking of ways to end my life. I remember praying to god please help me and make this man go away please and till this very day this man still lives at my house and continues to abuse me and my family emotionally and physically. I'm about to be 16 years old now. I'm mad at god cause he ignored me when I needed him the most. I'm not sure what to do? I do love god I'm just mad at him..... I don't want to be mad at him