When the market is good, it's wise to retreat quickly. With a family and children, you can't bet everything. If you only have 10 million, you can only invest 2-3 million. You need to leave enough for living expenses and emergency budget for the family, without affecting daily life. At the very least, you should withdraw all the principal invested during a bear market in a bull market; otherwise, in the next cycle of bull and bear, you might not have the capital to survive. Most people lose money in the second half of the bull market. As the price of BTC rises, the volatility increases, and altcoins tend to retreat first after BTC's halving.