English lit and Biology tutor for GCSE students, as a student in 6th form who has recieved nines in both subjects

I'm a Year thirteen student in sixth form who knows firsthand the ups and downs of GCSE's and the learning process. I achieved a grade nine in both English lit and Biology(seperate science), I am currently taking both for my A-levels and I want to offer aid and guidance for people struggling to improve in either of these subjects and help them excel in their GCSE's.