We all know that Bitcoin prices have dropped sharply after a fairly high price increase at the end of 2017, and until now there has not been a surge in price increases that can exceed the highest price Bitcoin has ever reached. If your father really thinks of avoiding the risk of a greater loss, then he wants to sell it, so I think that is something to do because no one can ensure that bitcoin will rise again the price is much higher than the previous price seeing the market situation this time. But if your father still has confidence in Bitcoin, you should wait for the first quarter of this year, maybe the price of bitcoin will rise and your father can avoid the risk of loss from the investment he made.
Market keeps on moving ups and downs, it seems to be very uncontrollable. It's very important that we are aware, knowledgeable, and well-educated about its nature, so we will be able to learn how to deal with its trend wisely and strategically. Feeling anxious is a normal feeling but don't let it distract you too much, don't be too affected with it because it doesn't help at all. It only hinders productivity and success. Take a look at the brighter side and don't lose hope.