My friend has earned $20 000 in a bounty of company Titanium, but he has decided not to sell coins, then the project was cracked, and now it is $5 000 
That's why experts always say that we need to learn to book a partial profit when prices are going up. Because prices will never go up always and it will go through the corrections and most likely we can't time the market to sell at high price. I know many small investors didn't sell bitcoins when it was trading at all-time high and some people might have sold less than 15K in a panic that bitcoin can collapse.
