all coins hold in an exchange can be stolen... so this is one of good reasons NOT to hold coins on exchange but store them on personal private wallet (better if hardware one like Ledger or trezor)
Just forget and relax and hold.... then after 1 year you will smile again..... do not panic it's a bad period but there is a bright future for crypto...
I think that Green will no last for many days... there is too much mess with news the comes around the world about regularization, taxations....after this market will rise again...