How do I deal with losses

As for how to face the problem of loss, I will first clearly know the investment logic at the time and the reason for the loss. In addition to speculation, the logic of long-term investment is to be optimistic about the company's future development, so as long as the company's fundamentals remain unchanged and the valuation is reasonable, I will treat these so-called losses as losses. Doing more with the low will let time prove the company's price. Losses aren't scary. What's scary is that you can't continue to operate at will to make you miss out on the investment that should have been profitable