I don't understand how English is marked...

I'm currently doing my GCSEs, but this post is about English Lit and Lang on Edexcel. I got my mock back a few days ago for 1 questions (worth 40 marks) and I got 24, which is absolutely appalling for my class. He showed us an answer from someone in the class who did really well, and they were making the same points as me and everything, but they come out with an A*.

I just don't understand this subject, it annoys me so much. I thought it would be an easy A but the exams are so difficult and I hardly get any feedback on my paper so how can I improve? I've already gone through examiners reports and I thought I nailed to exam technique but obviously not.

People seem to think that maybe he is a harsh marker, and that we'll be pleasantly surprised when we get our actual result but I really want a solid A in English Lit and Lang.

Well it's hard to find out what you're doing wrong when we don't know your writing style or the question or the exam board.....

Well it's hard to find out what you're doing wrong when we don't know your writing style or the question or the exam board.....

It's is the 40 marker (+7 spag marks) on the literature paper, Of Mice and Men, Edexcel (as I said previously in the original post..)