I need to boost up a grade in English

Hi, just wondering if there are any geniuses out there who can give me tips on how to get from a 6 to a 7 in English Lit (Educas), I’ve been getting 6s for a while and I don’t know how to get 7s. I usually get about 10-11 marks on the 15 markers and 20-25 marks on the 40 markers, I always include quotes, explanations, subject terminology & context, what else can I do??