Do not worry about the falls going on - if you check coinmarketcap, you will see that prices are slowly going back up.
These price falls are due to a multitude of things: South Korea imposing taxes on cryptos, anonymous accounts being banned from using exchanges etc., but in reality these are all signals that governments are taking cryptocurrencies a lot more seriously. What this means is that they believe in the growth of cryptos!
February and March will be interesting months for cryptos, we'll see how it goes. Hope this helps!