Ikaika B. asks:
How do you get your brother to do whatever you say?
Younger brothers are notorious for being followers and being led into trouble by their older brothers. So the first thing you need to do is make sure your brother is younger than you. If he isn’t, I suggest you purchase an aging spell (from a reputable witch) to render yourself older than your brother. This is rarely used and may have unexpected effect of adding more years to your age than expected. However, even if you were to suddenly find yourself elderly, this would be a small price to pay for fraternal obedience.
If your brother is already younger than you and won’t do as you say, then he is immune to the laws of nature and I can’t help you.