Bear in mind that C grades at GCSE are the bare minimum, and are distinctly unimpressive, and you'll have to work really hard to ensure that other strengths compensate for what will be seen as academic weakness.
To have posted the word 'Liturature' here shows either that you don't meet academic standards, or that you are slipshod and unable to check what you've written. Either way, it suggests that some remedial work in English (and I suspect in Maths) is very urgently needed.