I would first like to inquire if you’ve considered doing AH maths? This is something most of the med applicants in my year group did, along with AH biology and chemistry.
I haven’t done Higher Psychology but I’ll be honest with you, a lot of my friends took it as a skive, it seems to be a relatively easy class. Advanced Higher geography in my opinion would have a LOT more work to do and time required, particularly if you have to do some sort of project, assignment, or folio, which I assume you will.
Obviously it depends which universities you’re looking at… there are varying expectations of subjects they’ll want you to take or grades they’ll expect you to achieve, and for medicine there’s a fair bit of weighting on the UCAT and interviews too. Do you have a careers advisor or anyone studying medicine currently (ex-student perhaps) that you could talk to? They’d probably know a lot more than me heh.