@Sandra726 You will need to consult a tax professional on this, sadly. A tax expert will be able to evaluate the entire scope of your earnings and will be able to check the tax laws not only in the country where you reside and where you presumably are a citizen as well as the country where the income is earned.
I'm in the US and in general, if I pay income taxes to another country, I do not need to pay them again to the Internal Revenue Service.
This rule may be different in Australia.
Perhaps another host who has a similar situation as you might be able to give you more insight, but I definitely would consult a tax professional.