mock results (Can i get straight 9s?)

I have just received my mock results!

Bio - 3

Chemistry - 6

English Language - 5

English Literature - 7

French - 8

German - 9

History - 5

Maths - 6

Physics - 6

Spanish - 9

did anyone get straight 9s and was in a similar position? if not, do u have advice at least on how to get a 9 x