Am I cooking or am I cooked?

So a little context: I am a second year transfer student my major is in Astro with a minor in Comp Sci…..yet I realized that I don’t want to do Physics at the UofA since it doesn’t feel right if you know what I mean, so I’m trying to change my major to either Neuro or Psych, but I was told that because of the changes to the Major and Honours system I have to meet a certain AGPA to change my major, but they didn’t say anything on how I achieve that AGPA so I decided to take courses I thought I would like and would do good in! Yes I’m willing to take an extra year if that means I get the degree I want and yes I already have a boat load of credits already and yes I still need one more course for the Winter sem! Any advice would be much appreciated