I think if we are making an investment, managing our psychology is as important as money management and risk management. It doesn't matter if our investment amount is more or less, if we don't take strong and strong stances psychologically, it doesn't matter whether we are good at money management or not. I've seen a lot of people find it difficult to sleep despite the small amount of investment. I've seen a lot of people who have no regrets despite losing a lot of money.