If sustainable profits come based on one strategy, then one strategy is not enough to trade. Because the climate in the trade sector changes all the time. So everyone must be careful with the strategies they use. And this is an important matter. And actually I think the best strategy is a strategy that can produce more profit. Only the risk avoidance strategy is not good, a trader takes the risk of some time and the maximum time of risk of defense. I think this type of strategy is good for trading