take a deep breath and step away from computer.... Go take your dog for a walk, visit some family and friends

smell some flowers or enjoy fresh new snow... for the love of god just step away from what ever you are doing now

this is not for faint hearted and asking if this is the end of crypto you seems to be one of does
Come back tomorrow or day after and you will see there was nothing to worry about

too much money is invested into crypto for it to wanish just like that