Retake? What retake? You are only allowed to retake exams if it means that failing those will result in your expulsion. No, unlike A-Levels, universities cannot take these "retake" nonsense, the find them insulting (I failed? oh, retake
). A bit like life, sadly. January tests only account to 5% of the marks of this year anyway, so its no biggie. If I fail more than I should, I will have to explain myself to the senior tutor etcetcetc. Well, good luck on your Physics and Chem, maths should be a piece of cake for you, (so should physics and chem, but those papers can be real b!tch3s!).