Unable to withdraw

I don’t know when I added this netizen. One day, I surfed her moments and talked to her actively. She explained that she was trading short-term currency, which was profitable. She said that a teacher took her to operate, with a threshold of 30 thousand yuan. I contacted the service and deposited 33000 yuan. The teacher guided me to trade, with balance becoming 300 thousand. I wanted to make a withdrawal, while he said that my account needed to be tested. Te result showed that I needed do the risk management, and another 30 to 50 thousand was asked for. After I did so, the withdrawal was available. But 24 hours passed, it was yet to be received. The system showed that I needed to pay 25316.6 yuan rollover and then 60 thousand or so individual tax. At that time, I realized that I had been cheated.