Guys, you need to see the whole picture and not to be limited to the short term. Unless you want to do daytrading, just buy your BTC, put them somewhere safe and forget about them for few years.
It is also valid for those buying in December.
People are most of the time very short sighted when it comes to investments and that is a very serious issue because whenever they see that their investments starts to go down, they are in a panic mode to start selling and they lose out of profits as a result.
It is indeed a problem present in the community most especially in cryptocurrency. Maybe it is because they realize the volatility of it is higher than those of the traditional investment. Panic selling usually occurs to those people who are new to cryptocurrency though.