I'm not worried, as it has become a tradition that btc price falls in january. Look at the data from the last few years, then you will notice that the price always fell in January.
By the end of February or the beginning of March the price has risen again. I think this year will be similar and prices rise again no later than at the end of March. I hope so anyway.
I hope that it will become like before, that is why if we have fiat we should buy bitcoins as long as it is cheap because I also believe that soon bitcoin will rise up again and become tremendous. If your speculation has a high probability to occur then there's no reason for me to worry about it.By the end of February or the beginning of March the price has risen again. I think this year will be similar and prices rise again no later than at the end of March. I hope so anyway.