That is why good decision making in trading is a must, you have to decide properly on what you gonna do when the price of bitcoin goes down or goes up, there are some who still don't sell their bitcoin even the price of bitcoin is too high because they are still looking for more, well there is no wrong with that, just don't regret if the bitcoin goes down before you need it, but actually, if that would be the case then you should go for a long term investment, that is way too good to earn more money. Knowledge, experience, and good decision-making are the things you need to consider before you go for trading.