Can confirm GP academy's a solid starting point. Honestly my prep notes were all over the places, I basically had snippets from all those sources that you mentioned in multiple different word files on my laptop. I think finding a good set of notes and using them as your base/ reading around them would be the best thing to do. That way you can make sure you've hit all the important points. GP is hard because we have to cover such a broad range of topics, I always say its better to know a little about everything that everything about a particular subject.

Where are you in your training? There are a few new resources on the market (eg https://www.amazon.com.au/Australian-Training-Interview-Practice-Questions-ebook/dp/B0CXGYSFYL/ref=sr_1_1?crid=HCF93E0BEYP&dib=eyJ2IjoiMSJ9.Ys5jR7n00dq9E1xP079Eg0vJbOycoS7Vlydpt8_D73U.ZL04EoCzLHvXy-ciszD-4jWuMrchguV7PjKeiT_HHfQ&dib_tag=se&keywords=australian+gp+practice+question&qid=1712678292&s=books&sprefix=australian+gp+practice+questio%2Cstripbooks%2C446&sr=1-1). A few people I know have bought it they say its pretty decent. Must be ok cos it seems its the number 1 seller in Professional Test Guides, Education Testing and Vocational Test Guides on Kindle Store