by using trailing resistance you can easily decide and see possible upward movements and understand if you are in a safe zone.
Using Trailing Resistance is just simple:
Go long/ Buy when price crosses above the indicator,
Stay on short position if prices are below the indicator.
The indicator is calculated from previous Lows and doesn't the value won't change until prices makes higher lows.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.