Money is a very valuable thing in our life. Everyone has to work hard enough to earn money, very easy but never money. Since it is difficult to make money, it is natural for an investor to think about it when he invests that money. If an investor invests the entire wealth that he has accumulated over a few months or years, he must think whether he is investing his hard-earned money in the right place. Those who have prior knowledge of investing may not worry so much after investing but this problem is more common among those who are new to investing. In the initial stage an investor thinks a lot after investing but gradually he gets enough confidence in the investment and he gradually starts to trust the investment. If we invest then we must invest with confidence in the investment and if we don't have confidence in the investment then we can never keep that investment for long and we will never get our desired results from that investment.
The reason I so much cherish the DCA method of investing in Bitcoin is because it eliminates most of the concerns you have just raised in your comment. The DCA method helps stop you from worries and continual worries about your investment because you are putting just a little part of your income in a regular basis, in such a way that it will not impact negatively on your living condition. You can practically start investing in Bitcoin through the DCA method provided the basic requirements are met.
Secondly, you don't have to be a pro to invest in Bitcoin through the DCA method, you just have to discipline to follow the principles. It is not like day trading where you need to have expert technical knowledge of the market neither did it require you to be an investor for several years, even a newbie can apply it just like most of us started using it when we have just little knowledge of Bitcoin. This is how simple and cool the DCA method can be and why it is the preferred method for little fries like us who are aspiring to build something significant for the future.