the plan that is often used is to buy at a low price and sell when the price increases, such a plan is very easy to say, but the reality is very difficult to do, I never bought for a certain price but an interval of the plan that is often used is to buy a low price and sell when the price increases, such a plan is very easy to say, but the reality is very difficult to do, I never buy for a certain price but an interval of several days the price suddenly the decline and decline continues, I decided to accept the loss by selling and starting again when the price is really cheap