If you don't have a large capital, don't think about making big money. Always thinking about making 1000u with 10u, do you think you are a gambling god? Light Position or Spot is the way to go. Small capital can't withstand big Fluctuation. Don't invest more than 5% of your total capital each time, enter in batches, Heavy Position will definitely blow up. Withdraw if the daily profit exceeds 5%, don't invest anymore, and remember not to be greedy. Invest 15% of the daily profit in Spot.