There is a saying that goes: profits can always take care of themselves, and losses will never end on their own. If you don't set a stop loss, the losses will only remain in your account, like a cancer that makes you feel uncomfortable. When the meat had to be cut in the end, the loss at this point was much greater than the original stop loss value, and this account was actually not cost-effective. If you are in such a cycle, please stop and think carefully, summarize your experience and lessons, and then send it out as a whole!