Australian Tax and Selling Steem made as a Sole Trader

Hi
I'm a sole trader from Australia and I am wondering what the tax consequences will be if I turn my Steem Dollars into AUD?

It sounds like we are talking possibly a capital gains tax, but I didn't buy this cryptocurrency and instead made it on here so I'm not too sure what the consequences are, if that means the whole lot is assessed as a "gain" and gets taxed, and also what difference being a sole trader makes to this whole situation.

Does anyone know what the tax treatment is in the case of Steem Dollars in Australia for a sole trader?

Thank you for your help

Regards
Birchmark