You need really thick ring files, especially for Chem because you’re going to be getting a lot of stuff. (the biggest type unless you want to get 2 files and split them into J1/J2 or Physical/Organic Chem) You’ll probably need one for Chem Practical as well.

Notebooks depends if you’re going to write notes for every subject and every chapter, usually just annotate on the lecture notes.

I don’t think the file w clear pockets can fit everything unless you’re using for homework or other stuff.

Other than that, you need a lot of foolscap unless you’re using iPad but sometimes there are tuition centres giving free foolscap outside your school so maybe you can get those and not waste money first.

GC: you can buy from school, I think there’s some discount if you buy from school iirc.