At that time, I emphasized that I should withdraw the profits first, and then buy back to increase the number of coins I hold when the price drops. Although it has not fallen much now, Bitcoin has fallen by several thousand points. If you have withdrawn the profits at that time, you can use the profits to increase the number of coins you hold appropriately. The remaining positions can continue to wait and see, waiting for the next opportunity to buy the bottom. At present, Bitcoin has not shown any signs of stopping the decline.