Anywhere below the last ATH is a fucking dip, so it doesn't matter when you bought what matters is if your holding.
Your right about DCA , if anyone has been using DCA since last year till now, he would have been buying on a monthly average that is very low compared to the last ATH and we are expecting the price to reach 60k or even exceed the last ATH this week. But I don't care, I have currently increased my DCA allocation for the main time till bitcoin exceed the ATH then I'll bring it back to normal, I don't want to miss out on this last set of dips we are seeing right now, if you are looking at the chart on a time from of 5 years then you would understand that all this while we have been on a very long period of dips, so even those trying to time the dip has been fooling themselves cause we have been on a dip ever since the last ATH 😀.
Yeah with a sub dip may be

and better opportunities to hold it almost halving but Bitcoin is kinda making higher supports much more faster than expected so any chance missed might not be recovered. The best time to start DCA or buy BTC is now,the second best time is still now.
Bitcoin halving event are usually followed by a positive price increase as the result of the fact that halving lowers supply with fewer Bitcoin in circulation and increase demand and historically it has been so , there is a believe that Bitcoin will reach a new ATH six months after the halving. Although most time historical data can only become a quide and all crystal balls can become cloudy meaning that what happened in the past may or may not happen in the future.
We should not only focus on the bull market that comes with this, we have to understand that during and after halving, there comes a highly volatile market season whereby you can experience both bull and bear within the same time, even though the bull will always prevail at the long run, but we must never forget on how it such clumsy with high volatility and we must be able to set a target or limit to the rate we may want to sell or buy in other not to miss out big opportunities during this period.