Thank God, it turns out that 6K is the bottom of BTC. So, we are at the bottom of BTC now, don't need to worry that BTC will fall again, and it is time to buy more BTC.
If we assume $6000 the bottom price for bitcoin then it is quite possible that the price will down to this level because there is no big difference in the prices of today and $6000. The price is surrounding $6000, while some people say that it may drop more than that. Anyway we should not be panic and think positive about the bright future of bitcoin.