You sound so confusing because at the beginning of your post, you said that anyone who patiently invests in bitcoin with the DCA strategy will be successful, and at the end of your post, you said that only those investors who can buy the dip will be successful, which simply means that you don't really know how bitcoin investment works. Buying a dip is good, but it doesn't guarantee success in bitcoin investment, and no strategy guarantees success in bitcoin investment. For you to be successful in bitcoin investment, it solely depends on how you invest in bitcoin because you can't be investing in bitcoin with the DCA strategy in such a way that you will be struggling to sort out your daily expenses and expect to be successful in bitcoin.
Generally no investment strategy is guarantee to make our investment successful but it is good that we put in some good investments practices which i see is the general point of our conversations in light of all that we have been discussing here, and that is the reason why any investor should only follow up his or her investment within his or her general circumstances and goals and not just as a must of doing what others are doing, all approaches must be tailor down to suit you as investors while hoping for the better future, we have to prepare for the worst that may or may not happen.
Left for me, being successful in bitcoin investment is not about the strategy an investor use or how much the person invested with and overtime, being a successful investor, to me is how patient an investor can be, patience is the only guarantee that one's investment or goals towards their investment could be achieved, it is said that Bitcoin investment requires investors to hold for long-term and regardless of other important things like capital, steady income, DCA strategy and so forth, the main thing that would keep an investment going for 5 to 10 years or even more is patience, if an investor lacks it then it would be quite difficult to meet their goals or succeed in their investment journey. So whether one does the DCA, Lump-sum or even if they decide to buy the dip you'll still need patience to achieve your aim of investing.