No one can tell you precisely what the bottom will be but since markets have a tendency to move in extreme ways I think the bottom could be close to 5k only to reach a more stable price between 6k and 8k, the dump is happening because many people have been expecting for the price of bitcoin to recover and as soon as it reached their set target they began to sell, this has also caused panic among some investors and they did the same, so the bears have taken control of the market and I do not see them losing control of it for some time.