Go for it lad, you can always talk to ur teacher and get their opinion, plus you can always just drop 4u instead of not taking it and potentially end up regretting it!
It feels so gronk I've seen so many exchange students come here, I think they should open up exchange a bit more or change up the criteria a bit, solely based on marks is a bit shite.
Is your application for applying to exchange solely based on WAM? my wam is just shy off 75, can you do anything else, is there interviews and stuff?????? I wanna go uc berkeley lmao