help 6th form!

bush2001

i want to become a doctor and i have two options, alevels or ib.
firstly because i didnt take physics in igcse i am gonna study it this summer and do the exam in june 2018 either way.

if i do AS/A levels i would do physics igcse during year 12 and then physics AS during year 13. my concern is that if my school will not allow it.

IB is a good qualification and everything and i would just do the physics igcse and not worry about another exam and just take chem and bio. since ib is broad it gives me too many subjects that i would rather not study such as english, language and ict. i am also concerned about the fact that there is a VVVVVVERY low chance of getting the required grade in HL chemistry.

i can work hard for either option and both have their pros and cons but what do you guys think i should do??????