bitcoin slowly went down this year, from almost 20k USD last December and went down at a significant price
what might be the reason why bitcoin's price is going down?
what are the major things that can greatly influence bitcoin?
answers would be fully appreciated

There is nothing special happening, the price went up really fast and logic dictates the price will have to go down very fast as well, the price went down a little bit lower than I thought, I was predicting that we could reach the point of equilibrium at 9000 and we went down to 6000 but that is fine now the only thing to do is to wait for the price to recover again.