In investing in bitcoin we need confidence in ourselves, never listen to uncertain words about the analysis circulating on social media, they just say it and it is not certain that it will happen.
For example, you invest with your own money, you are the one who determines when to buy and you are the one who decides all decisions, not other people.
I think, if we are still in the accumulation stage, then just make regular purchases while approaching bitcoin.
Also learn how to organize good management in managing your cash flow in investing.
Bitcoin price is very uncertain and if we talk about predictions they are usually wrong in most cases. But positive side of Bitcoin is that it's price has enormously gone up in short duration. It's Bitcoin privilege that it has gone up to touch 100k$ in just 15 years since it was launched.
Why to follow rumours/FUD on social media when we have so much data available about Bitcoin. We can do study about Bitcoin our self and make decisions. There are tools that can tell you outcome of DCA (also Lump sum investment) in past for 1, 2, 3, 4 or any number of years.
One is in accumulation phase or not depends on how many Bitcoin he has. There is no standard guide that tells whether you have enough Bitcoins, this is something you have to figure out yourself.