I think if you have money to buy bitcoin, you should buy for 50% of this money now and live another 50% if bitcoin drops down to 4000-5000 and buy it then. If you already have bitcoin I wouldn't sell it.
Bitcoin might be down again but it's gonna be a long wait, maybe you have to look on the current market situation now price has started
to increase, you can ride with the slowly increase because it will pump. It's still $8K and the ATH was $19K imagine if we will surpass that ATH
this year, it would bring good money to us.