Rule 1: Preserving the principal for survival is

the first rule of investment

Rule 2: As long as you are not greedy for profit,

it's very simple, stable and low returns

Rule 3: Don't diversify too much, never fully invest

Go with the trend

Rule 4: Don't over-invest, don't hold onto losing positions

Avoid frequent trading

Rule 5: Don't rush to sell after buying

Be decisive in cutting losses, don't procrastinate