New to this, I buy on Coinbase and transfer to Exodus wallet (which yesterday took 7 hours!). So I can't see this as being a good way.
are you sure you used Coinbase? because from what I have been seeing Coinbase pays the highest transaction fees which makes transactions confirm the fastest meaning it should have been confirmed in next block!
not to mention the mempool has been smaller in past 2 days with low fee transactions (30-50 satoshi/byte) being confirmed fast.
Is it better to just use GDAX / Coinbase, would that be quicker?
it depends on what you want to trade. if the thing you want to trade is available on GDAX then do it there, yes it is quicker and more convenient for you that bought at coinbase.
And how do you cash in on your profits? Do you use the 'living room of Satoshi' website to transfer funds to your bank?
I have no idea what that website is! but I keep my profit in bitcoin which means I withdraw bitcoin to my cold storage (paper wallet).
and if I ever want to sell bitcoin to fiat I use localbitcoins to sell it peer to peer.
Coinbase, unfortunately, doesn't support transfers to Australian banks (only US).
may I ask how you bought bitcoin from coinbase then?