During the 2021 bull market, my friend Xiao Zhou, when he turned $20k into $350k, I advised him to at least take out half to lock in profits, but he insisted, "It's not the target price yet."

As a result, three months later, the market suddenly turned sharply downward, not only did he lose all his gains, but he also lost his principal completely, and in the end, he could only find a job to slowly pay off his debts.
Stories like this have never stopped in the crypto world.
Over the years, I have summarized three iron rules for survival: when your investment triples, take out half of the principal first; when profits double again, take out half again; never go all-in with all your money, and never chase after coins that are skyrocketing.
Newcomers often ask me, "How much profit is enough?" I always ask them in return, "First, think clearly—how much are you willing to lose?"