The DCA method means buying small amounts of bitcoins and holding them for long periods of time. By controlling the average price, buying Bitcoins with the DCA method, it is possible to accumulate Bitcoins regularly for a long period of time. Consider that if I buy $500 worth of bitcoins weekly or monthly, I will be able to earn (500×12=6000 dollars) worth of bitcoins in a year. And because of the ups and downs of the bitcoin price, the bitcoin price may improve further, so the DCA method is the most suitable way to invest in bitcoins. A person will never be able to purchase Bitcoin with the money they have accumulated, because their needs will stand around it. That's why many investors have become self-sufficient by buying bitcoins regularly in the DCA system.
Need money and investment money are very different in their use. Necessity money is money that you can use to buy all your needs to be able to live and have fun in the real world.
while investment money is money that is specifically intended for your future. so you don't need to take this money just to shop for daily necessities.
You also need to pay attention to how much your budget is for your needs. For example, if your income is $500/month, and you only need $200 for daily needs and emergency funds, that means you can use $300 for investments.
or how you arrange it already, because everyone's needs are different. However, it is better if the needs are few and the investment is greater.