Trend change is coming. Entry technics

The Australian dollar rallied above 0.72 and was immediately rejected. But it still holds the above the daily trendline. Potentially this rally can be extended to 0.73. Buyers have to protect their positions with tight stops. Commercials (based on COT) keep adding to their short positions, the cycle is turning to the downside. That makes me believe a selloff is coming. Failure to make a new high or breakdown below the daily trendline is a sign of trend change.