@MaffsMover school isn’t for everyone, our current GCSE teen is leaving school, was has effectively left because a college setting will be more suited, with fewer subjects, taught in a less formal way.
Has she or you or both of you together looked at revision tutors on YouTube? I know some who do this, might not be a lot of time for tomorrow but for many there is still a physics paper (Thursday) and the first English Language paper Friday. She might find some YouTube cramming helps organise some things that will help. Plus there is half term to check out maths, and other outstanding subjects.
Some of the time it is just a case of finding a method to engage a student which teachers in a class of 25+ pupils have to take a middle ground of what will work for most.
If you know which exam boards each exam is, you can look for information on what is covered on each paper and then search YouTube for a tuber which she likes.
I spend a fair bit of time with our GCSE teen at the moment because he works best with someone around, from books, past papers, so most of it offline but there are resources, BBC bitesize is another one, there to help.
We have no coursework at all. Nothing everything is dependent on these exams. It’s not ideal, but it’s the school year and system he is sitting, he can complain all he likes it’s not going to change now.
If you can between you find something that clicks, it’s just 3 over 3 weeks left now, shame to go through 12 years of compulsory education and think sod it all right at the end, and leave hating everything.