Waterfall wash your face, don't worry, take another look at the iron rules of investment, write them down in a notebook
1: Don't rush to buy
2: Don't be greedy to sell
3: Don't drag the stop loss
4: Don't diversify the varieties
5: Never be full
6: Follow the trend
Buy small when falling
Buy big when falling
Buy when the waterfall falls
Don't buy if it doesn't fall
Sell slightly when rising
Sell big when rising
Sell when the waterfall rises
Don't sell if it doesn't rise.