I’d say pick subjects to do well in, I did 10 GCSEs and picked 5 to proper focus on and the other 5 I just revised whenever I needed a break from my other revision or right before the mock or actual exam, I picked Physics, biology, chemistry, maths and food (I was getting 5/6s in all of these and Us in physics when I was attempting to revise all 10 subjects )but when I focused on just 5 and was calm about the other 5 I ended up coming out with 9- physics, biology and food 8-chemistry and maths (the ones I focused on) then 7-RE, English language 6-English lit and history and 5-french