Okay, I'm sorry that you are disappointed with your mark.
But I don't understand how you can set a goal without realising the moderation and aligning that happens to our marks. You might understand how it works - again, I'm sorry - but who's to say that the legal studies exam marks scaled down this year? (I don't think they would, but really, you never know.)
I may be self-righteous, but it does get very disheartening, especially when I am (or was) very happy with my mainly band 4 marks.