Bitcoin is decentralized and no any single authorities or central bank has control over it only the bitcoin users all over the world. Perhaps those who are rich and holds lots of bitcoin can influence the bitcoin market.

   Although skeptics assure that no whales exist, and the cost of crypto currency can not be managed by a small group of people, the fact remains. There are people who own colossal crypto-currency assets. And this allows them to manage the market.

maybe if like that, just like crypto with gambling, there is a dealer who controls the final result. but I am more confident if the market is a major factor in the ups and downs in the crypto market.

Basically, we are controling the crypto markets and the prices but for sure there are big whales that have some more control and you can't blame them. Even if the whales and the big investors are having a big impact on the markets and prices, the people still have a last word on this 2 things.

mainly crypto market is decentralized and it is in no one control but those who hold a number of bitcoin have potential chances to move the market

I think we all control the market, I mean to say we can, but primarily the big players, whales overcome us with their manipulative skill set. Unknowingly we just follow their indirectly showed path. Fear is the primary cause for us following them blindly without knowing we are doing so. The market will again move up and suddenly it will move up as it happened last year.

   I think there is no people controlling the crypto market that's why market price rapidly change from time to time and that is because of the demand and supply in the market. The demand and supply is the only factor that controlled crypto market.

No one can control the market, Bitcoin is free and has no management from anyone.
If it is a market I think Bitcoin billionaire can do this or the big investors can manipulate the ups and downs of the market. They can make new people or non-political investors sell out their cheap BTCs at cheap prices and sell them at higher prices for their own benefit.
What we need to do for small investors is to keep up, wait, and make their own decisions.

The market will definitely be bullish. But when? - that's a good question. Blockchain is a new breakthrough technology that is actively developing now and in the future it will be the main technology in the world of Finance, but when it happens - no one knows.

The market price of fluctuating up and down is a function of number token supply at a short period of time, with a less demanding, which affects the market price by going down on Red point indicator, at that point more investors are needed, which is the major challenge.