Anytime the price of an asset or commodity shoots straight up vertical producing 10x+ returns, it's a good time to sell.
Let this be a lesson to anyone new to crypto, not to get greedy.
Yup, greediness will make you miss the hit and that's why just learn from it and sell when you're in profit.
Just to let everyone know, you may check Bitcoin Price on Current Date for Last 10 Years on 100 Bitcoin everyday. This is actually a good website you've made. Right now at this date, bitcoin was at $66k.
I can tell you from experience that it is the greatest accomplishment, if you hodl through the hard times and you get to a new ATH with huge profits. I was there when it hit the ATH in the $40k price range and I sold some coins.... but I kept on to some more coins and the price dropped to $3000.
I guess you've priced it wrongly because bitcoin didn't plummet to $3k after reaching highs of $40k but I do get the idea of it. Didn't sold mostly at the top because of the holding attitude and then saw the bottom.
I still can't believe that some people sat on their hands while BTC was at 67,000$, everyone expected 100k for one BTC and they missed the opportunity, now history is repeating the same thing, sitting on their hands waiting for 10,000$ for one BTC before they start buying.
It's because we've thought that bitcoin will reach $100k and that's the goal of majority then. But that's okay, at least we've seen a glance of nearly $70k and the next time the market goes on a bull run, it is an exciting thing to see if it will surpass that price or if there will be another parabolic move that we shall see.
Anyhow, history will repeat itself again, maybe in 2025, when the price is around 6 digits there will be a lot of tweets about the current price.
After the halving, we guess? Yeah, that's what likely it is going to happen. That will make everyone crazy again and very positive on the market and will buy at highs instead of buying at lows.
The last ATH was $64k and the current last price was $19k. There seems to be a -$45k reduction. Of course, the reduction is extraordinary, and the bitcoin crash for 1 year has made many people start to clean up and start buying bitcoin for the long term.
The bitcoin price of $19k is a low price, there's no harm in buying at the current price, but another crash is possible. Be prepared with spare money that you still have, of course, it will be very helpful to buy even cheaper. Buy and hold for the long term, Bitcoin won't disappoint, ATH $64k might be a very low price in the future. Do your research, manage money well, and find out your best strategy.
And at these times, DCA is the best strategy that one can do and that's through every price that we can considered as low. $19k is low, we've seen a bit of $18,900 a while ago and then $17k months ago.