personally I am not surprised of this big cut in only one day. I think the right price of one btc is around 10k $ .
Price are already to high for a lot of altconis, maybe another dump it's probable in the next days.
This is going to be fine in just a few days from now, i do not understand why a lot of people are creating "possible" scenarios for bitcoin in the next few days.
Everything is fine, this current FUD is just a temporary one, and this will end at some point.
Just relax, do not sell anything, and everything will be fine soon