The so-called trend is a trend that can run in one direction for a period of time. But what you are talking about here is the intraday trend, which is not easy to confirm. The shorter the trend, the more difficult it is to confirm, especially futures. Sometimes the main line for a minute or two, all the short-term moving averages are destroyed at once. Then you can say that the upward trend is gone. If the main force is wrong when it comes up, and both sides are slapped, then it is ok to watch the intraday trend 15 minutes or more, and it can be watched for 5 minutes at most.

You can learn wave theory, which is a good way to identify trends and is of guiding significance to actual combat.

Another is the method of trend judgment. The direction of strength is the direction of trend. Sometimes the K line is long, but there is no strength, so you can consider not doing it first.

However, any order must be prepared for the worst and stop loss. People who invest without a stop loss will definitely lose all in the end.