There are many factors that cause the price of bitcoin to drop today, one of which is the FED policy that occurred some time ago, with the FED policy many investors or bitcoin holders have released their bitcoins and have switched back to holding the US dollar which is now considered to be stronger, the decline in bitcoin what happened might not be as bad as what happened in 2018 in my opinion, so that when the correction occurs again it is likely that we will see bitcoin rebound and rise to higher prices, I think sentiment from china does not have much effect on bitcoin this year, because some of the Chinese companies are starting to adopt and develop digital money, as seen in the news circulating recently on twitter.
https://twitter.com/BlockBeatsChina/status/1478213772288622595?s=20