Follow-up trading with a limited time, starting from 3000 oil. The best time to follow is when unrealized losses exceed 15%. Dual long and short strategy, with the advantage of light maximum position size, not afraid of any extreme market conditions without liquidation. The biggest disadvantage is that in extreme one-sided markets, one direction may be trapped, just wait for the right moment and do not withdraw halfway. Monthly yield is about 10-20%. About four months per cycle, after each cycle ends, switch accounts to carry on, and advance notice will be given.