There should be no time for a new investor to stop buying bitcoin, and that is why DCA method is there for consistent and persistent buying with part of your discretionary income that will not put pressure on your finance, so that you can keep your DCA ongoing every week for 4-10 and above. If you are only buying bitcoin when the price is high and you don't buy in a dip, you'll get little quantity of bitcoin overtime compared to someone that is buying regularly both in the dip and when the price is high overtime.
Moreover, DCA approach does not select when to buy or not, but just keep on buying irrespective of the price of bitcoin at that moment. As I am talking to you my DCA is ongoing, even if the price of bitcoin skyrocket or dip, I will continue buying every week because I have a goal to reach my bitcoin target.