You can actually buy BTC on Binance with a credit card but the fees would be crazy. minedigital and coinjar are Bpay or bank transfer which means the fees are only what they charge not what your bank charges. As CC will charge a cash advance on those transactions.
Yep - 1st step, aud to BTC, I rarely do this anymore as I have the funds in there already, these platforms are also the way you convert crypto to aud when you want to withdraw funds.
the exchange - Binance is your CommSec or IGMarkets, they offer margin as well as just spot like normal markets. The difference is the liquidity is only on that exchange, there are about 80 exchanges I think and only a very few share liquidity so you want to be on a decent size platform to ensure you're getting best liquidity.
You only need accounts with the ones you want to trade on. Just Binance would be more than adequate to start with.
CoinMarketCap and Gecko are like the ASX website, they show you a basic graph, market cap, circulating supply, and all the exchanges that coin is available to be traded on. So I use them as a high level look for anything I follow or an investigating.
All FA is through tradingview, in saying that Binance, Bittrex and even Ku have pretty decent in exchange charting tools now so aren't too bad. But nothing as good as tradingview. I do all my TA on TV and then when Im in positions or know my buy zone will watch and wait on exchange for the movements I'm looking for. Binance has OCO orders and limits etc too so very helpful.
If you want your stop losses hidden from the exchanges etc you can use 3commas it acts as a third party to hide TP and SL and connects into any exchange via API keys. I use this at times too.
