I can imagine what kind of feelings you do feel now. This message was made on 3rd of January and the price was around 16000$, but a rollercoaster named Bitcoin all last days colored in red.
Last year the situation was the same, when after a new price record bitcoin gone down on 400-500$ and only in March began it's triumphal growth (eh, that was the greatest time to buy bitcoin), so, no matter what is going on now and all this warnings about 2013th repeating, I believe that everything will go well in some short period of time, and for now, all of those who still did not invest in crypto currencies - take your chance!