It is good that you know your mistake.
Now you think that why you do it.
You can love your brother. He can be your very good friend. A helping hand to enjoy together, to study, to play, to exchange ideas and to go out.
But when you fight, you loose all this happiness.
It is not good. For trail change yourself & be loving & friendly with him. You will feel that what a surprising pleasure you get. Then please do share with me