Use the power of cristals! A pink Quartz have the strong power to conect with our heart. Made a spell of your own imagination to calm down your brother (cast this spell into the cristal)and in this spell, dont forget to say that your brother must change RIGHT NOW.
Then, hide the crystal in your brothers pillow. When whe sleep, most of our defense fell (thats the reason to people who was cused notice this first when have nightmares).
The spell will change your brothers mind. Be confident, the more you trust in your power to cast a spell, the more effective this spell will be.