I don't like my child

I don't like my child... there I said it. I know that makes me a terrible mother but it's the truth. I love him with all my heart. But I do not like him all the time. He's 9... we constantly clash. He is so much like his father, he's arrogant, ignorant, thinks he's bullet proof, thinks he's better than everybody else and is just so difficult. He will fight me on everything... I feel so bad saying it. Is there any other mums that feel the same? please tell me I'm not alone