Purchased Crypto in Home country then moved to another country

Hi Guys

I am originally from Australia and bought my crypto there a few years ago, never made any profit and never took any out however in the meantime I have become a resident of the Netherlands. Since moving to the Netherlands the crypto prices have skyrocketed and i have made a decent amount of money.

I do wish to sell some of my crypto but do not have any idea where i should be declaring my profits, Australia or the Netherlands?

Also I received a few airdrops and was lucky to get involved with some extra tokens that had no value but ended up being listed giving them real world value.

Any advice would be amazing!!

Thanks!