The first is to wait and see under the uncertain situation: before deciding to buy and sell foreign exchange, we must maintain an optimistic view of the market, and we must have sufficient investment information, market information and a calm and relaxed mood. Never forget to go against the trend. It is necessary to carefully observe the market, add objective basic analysis, supplemented by technical analysis of historical trajectory, and then enter the market conveniently. Don't lose big because of small things: do what you want. Before and after entering the market, set the buying or selling price, profit and stop loss point. But this is just a prediction. Don't stick to a specific price. As long as the price deviates from the original target price not far, the final decision of buying and selling should be made according to the trend. Tip 2: safe stop loss consideration: save investment strength and reduce possible losses caused by trading mistakes. Stop loss orders can help investors close their positions and leave as soon as possible when there is danger after entering the market. Of course, stop-loss orders can't be set up at will, but as long as there is clear information to prepare for assistance before entering the market and the order is placed according to the principle, unpredictable losses can be reduced. Let it grow when it is profitable: many investors often only stop loss, but they don't know the art of keeping profits and making profits grow. Although the market is uncertain, if the profit is in hand, the profit ceiling can continue to grow as long as you wait patiently for the target price and supplement it with a stop loss order. Tip 3: Don't leave the mistake of entering the market for too long: If the general trend of the market reverses and the established plan is different, you should believe the facts. Because the foreign exchange market is international and there will be many participants, any unexpected situation is possible. Don't make some excuses for your failure subjectively, and don't admit that failure is a taboo for market strategists. If the market is reversed after entering the market, it is not to admit defeat, but to find ways to overweight and recover lost ground. If you overweight again and again, it may fill the hole and cause greater losses. Tip 4: Foreign exchange investors enter the market when news happens or is expected to happen. Once confirmed, they leave quickly: this method does not require technology. Investors just use the market expectation psychology to enter the market in advance, and then close their positions after the news is confirmed. However, the foreign exchange market is a typical expected psychological market. Usually investors' expectations will be higher and higher, so they will follow the expected psychology to trade. When the expectation is confirmed, most of the original bulls or bears will close their positions and leave. This kind of market behavior makes it impossible for economic principles to effectively predict the exchange rate trend.