If we see the history of Bitcoin, then it's pretty easy to see how Bitcoin recovered its price. It would take time to recover, but eventually it did. So at the end of the day, holders don't need to be regretful. I am talking about Bitcoin, not about any other altcoin. Because even though the Bitcoin price has recovered, many altcoins haven't recovered yet. Even those who bought Bitcoin at the top in the last bull run, I believe they are almost recovered.
You are right because Bitcoin has shown everyone who invested on it that they will never regret chosen Bitcoin for there investment, because with how potential Bitcoin is no matter how the price may seem to be dipping but one thing is for certain that it will surely bounce back to it normal price, just like months ago when the Bitcoin price was ranging within $30k to $36k and now look at how far the price has gone now, this is actually a prove that there are so many good things installed for Bitcoin in the future, perhaps that's one of the reasons why I believe that no time is late in terms of buying Bitcoin because even if we feel it has gotten or creating a new All-time high but with time the new ATH will be lower compare to what the price will be in the future.