Only those who are new to the bitcoin world and/or bought when bitcoins were at peak are going to panic. Me, being into Bitcoin world for 5 years, know that this is just a temporary dip and it was important to happen, Bitcoin will rise again, to a much higher peak now, quite confident that it will cross 25k$ this year but trust me on this, that would be the pinnacle of Bitcoins. Ethereum and Ripple are doing much better than bitcoins lately.

HODL or Trade your Bitcoins, just don't sell for USD or Fiat.  I feel bad for those who bought bitcoins when it was at 17k$ and sold at 15k$