wether you're allowed to or not is up to the school, but idk about can, cuz you will have to self study A LOT. an entire years worth especially if its HL, either way, best of luck!
my school doesnt have psychology as one of the ib subjects available, but ive always wanted to be a psychology major, to be completely honest im so lost as to what to do. would it be even possible to self study it??? and will i even be accepted into a uni for a psyche major??? i need some guidance yall lmao plsss