Every holders of bitcoin wished they had dumped bitcoin in December before the huge dump in price. It actually sounds funny because many holders of bitcoin when it was $20k were thinking bitcoin will hit $30k but it didn't see the $30k mark. Its very difficult to take the right decision in crypto world. Cryptocurrecny that makes our mental strength, stay patient and try because Bitcoin is now increasing bit by bit. And do not be greedy when you're lucky.