I'm in teen challenge

Group living/school situation, I'm older than them so not very conerned, but they're all very preppy and cliquey. There's a smaller group wearing suit and tie that all sit together. At one point I'm on the "welcome aboard" video motioning with my head to my mom to come inside the store. Kids are laughing. One mentions my "tunic" (hoodie?) and I make fun of her because I'm standing right behind her and she didn't know what to call it. Then I'm in my underwear looking for pants. I find a friend. Someone is getting blood or plasma drawn, there's so much of it in a tube. A steam machine in the gym pumps tubes full of petroleum jelly.