So sorry to hear that the school year started off so challenging, but it's also encouraging that some pieces have started to fall into place for her.

In general, perfectionism is a manifestation of anxiety, so strategies effective for anxiety can be helpful (e.g., DBT, CBT). Anything on DBT by Marsha Linehan is a good starting point.

Has she taken her exams yet? Did she feel okay going through them?

...pronounced like the long vowel and first letter of the alphabet...