results consultation with teacher did not go well...

I got my results back a couple of weeks ago and although I was happy with a B in chemistry and sociology, I was bitterly dissapointed with a D in biology. I thought if I offered to do re-sits my teachers would be able to predict me a C at A2 but after todays consultation my department head is unwilling to. She says she knows I did a lot worse than I should of and she thinks I should apply to uni as a post- results applicant and take a gap year. I want to study children s nursing and need a minimum of 3 B grades at A2 for the large majority of courses apart from a few unis that are not great for nursing and ave abysmal pass ratings.

I know a gap year isnt the right route for me as If I get the grades I need at the end of A2 year I will spend a year doing not what I want to do which is just depressing.

I am also a young carer and went to a low acheiving secondary and really don't want to put off doing something I really would enjoy just because of one ****ing exam. Any nursing applicants know anything I can do to avoid going to ARU and having a crap time?