Low-cost B can only eat big meat if it holds on, and the fluctuations will become increasingly pronounced, with changes of 20%, 30%, or 50% within a day until the bull market ends. Frequent adjustments will only trap you in cost traps set by the market manipulators, leading to relentless psychological torment, ultimately allowing the market to take control. A good holding cost determines whether one can make profits in a bull market. Firmly stick to your thoughts and strategies; do not be swayed by the good performance of the market. When you see other Bs rushing upwards, do not rush; focus on maintaining your own rhythm. Chasing after trends will surely lead to emptiness.