Assalam’alaikum everyone. I am reaching out because I need urgent advice on how to help my younger brother who is in high school. I am certain he has started using drugs secretly because he smells like smoke constantly and tries to hide it by using heavy perfume every time he comes to help at our family store. He has become incredibly aggressive and defensive; any time I try to give him sincere advice or speak to him about his future, he overreacts and becomes hostile.

He has completely stopped caring about his Salah or the consequences of his actions, and he is fixated on making money regardless of whether the methods are Haram or dangerous. I am terrified for his future because we have uncles who are drug addicts, and I can see him heading down that exact same path. I feel like he is becoming "unhelpable" because he refuses to listen to anyone, but I don't want to watch him ruin his life. How do I get through to a sibling who is this angry and in denial? I would appreciate any practical advice on how to intervene before things get worse. JazakAllah Khair for your help.