I am in desperate need for advice so please help if you can

I am a student in Northern Ireland who is currently going into year 12. When I choose my gcses I did not have a career in mind and just choose subjects I knew I would enjoy. I picked single award science, english language, foundation maths, music, drama, business studies, religious education and PAL. These are all CCEA. During the past couple of months I have taken an incredibly strong desire to study medicine to become a doctor (more specifically an orthopaedic surgeon OR possibly something in neuro) Due to not studying double award science at gcse level, I cannot study a level chemistry or biology. I also study foundation maths so the highest I can get is a C* this means I also won't have the B in gcse maths that most medical schools look for.
I am looking advice on what route or path I can take to study medicine. It is too late to go back and chance my gcse subjects as they are all nearly completed now.
I am extremely open to studying an under grad and then follow up with post grad medicine but i'm finding it extremely hard to find science or medical related undergrads that do not require the same or similar entry requirements as medicine does.
I would appreciate any help at all.
Many Thanks
