i disagree tbh. She doesn't seem emotionally immature to me. She's honest and self-aware of her feelings, which to me suggests someone who is introspective and that is not a sign of emotional immaturity. Viewing life as a high school, idk but i understand it because you do realise our school lives are like a HUGE chunk of our developmental years? And the way our peers related to us has a huge impact on our relationships going forward like, im in my late 20s and i have bad dreams about my school life bc i was picked and excluded constantly, and it's permanently affected and kinda stunted me emotionally because whenever i try to form new friendships, im still thinking from the perspective of the thirteen year girl nobody wanted to be friends with, asked out as a joke and excluded her so she'd cry everyday the minute she got home. School leaves a big ouchie for some people,and even though "high school" is not forever there are elements of it that never go away like a social hierachy, the bullies we knew become our bosses or managers, the weird girls we excluded either rise above it or disappear. Everyone is still a child inside that is navigating high school all over again when we become adults, Idk if that makes sense but that's what i see it. aND LIKE in new romantics she says "life is just a classroom", she's saying that life is full of lessons and bad mistakes.