When you have no money, you need to understand money better; this is common sense, but very few people actually do it.

Economics has an interesting phenomenon called the "300,000 Savings Phenomenon." For ordinary wage earners, this often represents the upper limit of their savings—not that they will earn only this much in a lifetime, but that their mindset changes at this point.

In the past, every penny was saved cautiously. But once the account truly has 300,000 lying there, people become restless. At this point, various "middle-class temptations" start to target you—financial products, investment projects, consumption traps, all coming one after another.

To put it simply, it's not that you have too much money, but that people are most likely to make foolish decisions after accumulating a little bit of savings. Knowing you have money makes you think you have good judgment; seeing others make money makes it hard to resist following the trend. The result is often that the 300,000 savings are quickly gone.

Users of exchanges have also seen many such stories. After a few years of small-scale regular investments, the account finally reaches a certain size, and then they want to get rich overnight—using high leverage, chasing hot trends, and ending up losing everything. Money isn't the problem; mindset is the real test.