UPDATE:
Finished my resits and went from BD in Chemistry and Biology to AA* after a year of self teaching. I have also reached into 13 stones and 6 pounds atm. Also got all 5 offers decided to firm Aston with requirement of AB. As I have exceeded the grades I got an unconditional. I decided im going to reapply for medicine and take another gap year. Hopefully A*AB is enough for medicine.