There are many people who are impatient, and they do not get the money they want from their investments and they sell their investments. Then they go for short-term investments in the hope of getting rich quickly, and within a few days they lose their capital and face huge losses. You have to be patient when investing. When you exceed the time limit of your investment, you have benefited more than a short-term investor or trader.
People who sell over the slightest rumor out of fear of losing out are a part of the reason for the decrease in the price of bitcoin, as bad press from them affects the international bitcoin market in negative ways, the reverse can also be said to be true, good press toward bitcoin helps in price appreciation just like when Tesla announced that they were going to start receiving payment in bitcoin, the price of bitcoin pushed up very quickly even though they had to halt that plan for certain reasons, the fact that the announcement had such effect on the price of bitcoin proves that people pushing for more inclusion of bitcoin in trades (goods and services) can help boost the price.