1. Stop the trade: This is very good but difficult for many traders to do it but if you do that, you have potential loss that you have saved.
2. Use of stoploss all the time: This help your losses to be minimal.
3. Try to adjust your stoploss: You can do this if your trade is already in profit and you suspect that it is going back to your entry price, so you can take your stoploss to entry and all the order to run for profit or it stops at your entry.
I look for currencies that are witnessing an increase in market capacities then I place a stop loss order 5% less than what I bought and sell at 30%.
A stop-loss order is not cool to generate profits. I use OCO order.
You place an order to sell (30% high) and when the price decreases OCO change to be stop order and place 5% order.