"Need Advise Trader Paying Tax"

Hope I'm in the correct forum page to ask these few questions. My tax man has informed me that if i sell shares before 12months of buying them i pay 50% tax on the profits. And if i sell after 12months i pay 36c in the dollar, is this correct ? If so is there anyway around paying this ridiculous amount of money if I'm going to become a short term trader. Just sounds ludicrous on how much tax the government wants from what i make in profits. Please give me some advise, as it doesn't feel worth trading at 50% tax. If so can anyone recommend a good tax person who deals with trading & paying tax on the Gold Coast area. Kind Regards Darren