I Guss this isn't Done Yet

Part 1 intro/plot

Kyle or better known as Kai was a bad kid in middle school. He was skipping class and doing some reckless stuff for his age. In the 8th grade, the school found out and sent him to rehab for the whole summer.
His home life wasn't the best, his mom was a functioning meth addict unlike her boyfriend who slept and smoked all day.
His little sister Kenna was a sweet girl when he left. She watched everything, his mom hitting him, Kai drinking, everything.
He just hoped she was better than he. And the boyfriend's kid. She's a toddler named Priscilla, and he was the only one who took care of her. He just hoped that when he came home everything would be better, or at least the same. As he was sitting in the back seat of the car his mom quietly drove. She was a small overweight woman which is surprising, since your spouse is supposed to get skinny on meth.
Her hair was bleached blonde in a loose bun that was falling off her head. It wouldn't take a detective to see she's a druggie, or at least struggling. But he can't say anyone since he's in the same boat.
At his time in rehab, he grew out his hair. It used to be a buzz cut but now it's too his ear. He gave himself a lip piercing with a pencil. And he gained healthy weight. He used to look like a noodle but now just looks skinny. He looks out the window, and the road is covered in old trees and trash. It was raining outside.
His mom looks over at him in her window, but she couldn't say anything since she's part of the reason he was there. Rehab was bad it was just boring, no weed no drinks. Jest carzy people in one building. Time flew by for him, he couldn't even remember what day it was. Has he was deep in his thoughts he was interrupted by the car stopping on their road, he looked out at the house. Still old and trash as it was. His mom gets out not even looking at him as she opens the house door.
He gets out with his backpack full of the little stuff he had. As he walks in he smells the smell of burnt tinfoil and cigarettes. It's dark, he could tell the light bills weren't paid, his mom walks to her room and disappears without a hello or welcome back. She has always been like this so it didn't hurt him.
He goes straight to his room, he'll deal with everyone in the morning. His room looks the same, the same dirty clothes and needles on the floor and bed. He lies on his bed and passes out.