This dude is legit unfixable. He's given the easiest job in the world and he still throws it away. He can blame it on weed all he wants (though he undoubtidly has a genetic predisposition to weed fucking him up bad) but if it wasn't gonna be weed it was gonna be something else, like his video game addiction, his brain is designed to cling onto easy dopamine because he is mentally weak. Point is, he will find every avenue to excuse himself of blame, nobody goes through "rehab" or "therapy" this much and still comes out so fucked up unless they are locked into self-ruination. And about his job, he really is fucked in that regard, because if he can't handle listening to music for a living then there's really no way he'll be able to hold down a stable 9-5 without self-immolating in the real world. Point is: wherever he goes he will be laughed at, forever, because he is psychologically unfit for any aspect of the adult world.