It was because I misunderstood how the contest works. I thought it was like a building my deposited money by playing the trading game with min $10 per bet (I thought it is like a deposit race) but I was wrong since it is a one bet submission with the highest ROI. Once I realized how the contest works, unfortunately I have no funds at all in my wallet and I realized it few hours before the contest end. Will participate in the next contest for sure.