I don't know if you sold the Ethereum in your hand. If you didn't sell it, then your loss is very serious. Now the $300 Ethereum is really falling.
Man, nobody could guess that time that Ethereum would fall so drastically. as for the current situation, it will be better to hold this crypto. Finally, it will start going up.
I think selling half and keeping half would be better for him. The amount of ETH he keeps is huge, no need to risk keeping all while the market lurked too much risk.