My DD has just started a week of exams. There will then be another week in May, and a final week in June (where they are likely to use the Ofqual questions), but the June exams are due to be shorter. Their mark will then be based on work done to date, plus the results from the 3 sets of assessments. After this week's assessments, they'll be able to give us an idea of marks, and they can use the May and June assessments to improve.
She's not had any mocks, so gone straight into tests that count. Having had the rug pulled out from under her by COVID over the last year, she's lost a lot of motivation, and I don't think has done enough work for this week's assessments (although they were only given a week's notice so...).