This is a fantastic time to BUY and HOLD. Be a contrarian and make your own investment decisions.
Disclosure: I have been buying Bitcoin at $12,000 $11,500 on 1/16/2018. I have a lot of limit orders placed to purchase Bitcoin at $10,500, $9,800, and a huge limit order if Bitcoin drops to $8,800 (like seriously pouring in USD and pulling out of real estate if it drops to this level) I'm basically dollar cost averaging as the price drops. I'm also increasing my capital invested as it drops!! :)
This is likely the best opportunity to get into cryptocurrencies in 2018. (by doing your own due dilligence and making wise intelligent investing decision)