This is the fundamental logic that ordinary people should learn most, yet which is most easily overlooked: A stable cash flow is the cornerstone of stock and cryptocurrency trading. First, have a business or job that can continuously generate income, then invest. With a continuous supply of funds, you can remain calm and composed in the face of adversity; Only then can you truly "buy more when prices fall and hold on when prices rise." Stop searching for miracles and 100x coins in candlestick charts. Focus on building your own funds and establishing your own system.