I graduated, had a job offer and was making a good income (a...

I graduated, had a job offer and was making a good income (around $95,000 pre-tax), and my heart was set on achieving a milestone right out of the gate – owning a house in Melbourne.
The idea of having a piece of the city to call my own filled me with excitement. I figured if I had the money, why not do it now. Paying the mortgage now would allow me to have a paid off property at an early age (just as my uncle, he did that at his 30s, which means he had over $800,000 in fixed assets before he turned 40 and then lived a comfortable life). Maybe I can rent it out in the future.
Yet, my cousin says that my money will do better in the stock market. I'm hoping to be like my uncle and feel great about paying off my mortgage before I'm 40. Do we have some money left? Maybe. Even not, I think we still have afterpay... $CommBank (CBA.AU)$ $ANZ Group Holdings Ltd (ANZ.AU)$