There is no single entity that controls Bitcoin, but the Bitcoin community sometimes makes decisions that affect how the system works (blockchain). Bitcoin diggers run bitcoin transactional verification software and therefore determine what are the valid trading rules.
Attempting to change these rules sometimes leads to the creation of a fork, which causes the formation of two separate strings, each of which will follow different rules. As long as there are miners willing to work on each string, both are valid.
In the past, the time before the fork occurred created uncertainty and reduced prices. After that, prices usually rise again.
Like any currency, Bitcoin has ups and downs. Only Bitcoin changes tend to be stronger than other currencies.
Although the Bitcoin market is likely to stabilize, it is expected to remain volatile, at least for now.