Don't panic, keep calm, don't sell!
It's a dump, like many others.
When I've started on Binance 6 years ago, I've sold most of my coins during the first heavy dump.
I was afraid the value could go to 1/10 of what I've invested (and it did after all) so I've sold everything for half the price I've paid before.
One month later, all the coins at least doubled their original value (the price I've paid to buy them) and I felt so bad and stupid.
When there is a DUMP....JUST HOLD ON!!!!