Really need help because of annoying classmates

I (M16) had dropped out for two years for mental health reasons and decided this year to go to high school to try and get my high school diploma.

Everyone recommended me a certain school, having a shorter timetable for people doing sports or having artistic hobbies. We met one of the school teachers and also co director and she told me her school was perfect for me, being neurodivergent and having trauma from classmates bullying me. My family paid for the school, really quite expensive for us but we thought that at least I would feel good there and learn stuff.

Turns out I was wrong.

My classmates are so annoying. I don’t understand why they constantly need to talk, yell, laugh and sing random songs. They’re just constantly really loud. I also don’t understand why you need to comment on every single thing the teacher or someone else does. Since that school is “different”, nobody ever really gets scolded. Detention doesn’t even exist here. I just constantly feel like everyone doesn’t care about learning but their parents paid for this school so they have to be here. The noise is sometimes so loud that no noise reduction headphones could work.

Also, even though we have important exams coming up this year and next year, everyone constantly cheats uses ai, and brags about it. Like i wouldn’t mind if you were doing it discretely but having the whole class cheat and pass their papers around is just ridiculous. Another thing, sometimes people eat in class right in front of the teacher. They’ll be eating chips, fries and sometimes kebabs in class.

I’ve talked about it to one of the principals but they said that it’s not that bad (because they don’t see it happening) and that I’m exaggerating. I feel like nobody understands my situation at this point.

I came to this school to learn and i can’t because of my classmates. I always sit first row but that doesn’t help. They’re just so childish and I just don’t understand how you can act like that. I already struggle with loneliness and depression but it keeps getting worse because of them. I just feel like the only one trying to learn but fail. It’s getting so bad that I consider dropping out and doing something completely different.

I really need some advice or anything really just so that i can feel heard.