I disliked my sister very much as a child
What did she do to you to make you feel this strongly?
She was so inconvenient for me when I was a child.
It's normal for siblings to dislike each other or fight when they're younger. But it's important to try to have a better relationship with your sister as you grow older, because it's important to be there for your family.
That bitch. She ruined my life.
It sounds like you are just siblings being siblings. Some just happen to fight more than others.