I felt panicked only on the first day. However, after that just relax. I do not need to worry about declining bitcoin price, because my goal of investing in bitcoin is to see bitcoin above $25K. Whenever the time, I will survive to hold it.
Always the best thing to do bro! For anyone who is busy panicking, they should know better that whales are always out for profit and they will use every means available to shed people to drop their coins even at loss, which is where they make their profit. Also, looking at the trend for every beginning of the year, this is something that is normal to happen, the market will bounce back and the bulls will eventually take over.