There is no need to think too much about when is the best time to buy bitcoin—anytime is best—what matters is that the sooner you buy, the better. People are too busy thinking about when they should buy, and forget the fact that if they hold for the long term, it is the same. Determining the goal and focus of long-term investment is important to be able to secure profits with more certainty, while volatility is just noise, one should not be too bothered by it, but understanding it is also necessary to not take the wrong step by selling when they are at a loss.
There is not much to think about, the market is always open, traders should be the ones timing the market but as an investor your only job is to buy Bitcoin and hold, secure your investment and grow it further, the market is not ending soon, the more Bitcoin held the better the profits for those who purchase early will receive the bigger profits by the time the market begins to flow in profits. No loss in Bitcoin investment as long you don't sell early, the loss is limited to only if you avoid unnecessary pressure when volatility happens.