Well first off, I would notify a parent and let them know what your brother did.
Second off, don't let your brother hit you with things.
And third, if he's being rude, you have the right to ignore him.
He was paranoid. He was constantly in fear of how he could control this vast new territory with so many cultures and so many different groups of people," she says. And he feared the inkbrush as much as the sword.
hope it helps u