The following is the best way for aussies with a bit of trading or investing experience. Which I'm assuming is you since you've got a high post count here on HC and your jason Bourne
Open accounts with btcmarkets, independent reserve or acx.io
Don't have to open an account with all but since prices vary on each it's smart to do so. This account is called your gateway exchange. This is where you convert AUD into base currency crypto and to cash out from base currency crypto to AUD.
Base currency crypto is usually Bitcoin BTC or Ethereum ETH
Once you have some base currency crypto you send that base currency crypto to a crypto only exchange. This is where you buy and sell Alts
Here are my favourite crypto exchanges : binance, kucoin, cryptopia. There are many other exchanges but starting with three 3 will give you access to hundreds of alts. Trading fees are also a lot lower on crypto exchanges
So if you want to hodl alts, just buy what you want and send them to your own wallet from the exchange. If you want to cash out after trading like a winner then convert the alts into base currency crypto and send them back to the gateway exchange with the highest rate
