Futures are also long-term, but the longest may be 1 year, because the contract is valid. Generally speaking, 3 or 4 months is more. There are longer ones that need to be constantly moved. Futures varieties also fluctuate together, but the prices of different varieties are different, and the unit fluctuations are different, so in a volatile market, you can also participate in varieties with large fluctuations and active opportunities.
For the medium and long-term trend, the moving average is the best indicator, and it is the medium and long-term moving average. However, due to the lag of the moving average, if the moving average confirms that the trend is reversed and it needs to be profitable, then the profit has already retreated a lot. At this time, you can refer to the intersection of short-term moving averages, which is more sensitive than the medium and long term. In addition, you can refer to the usage of ATR indicator, and I recommend the stop loss setting based on ATR.