Do you take back up copies of your external hard drive regularly?
I've been considering taking every coin I have out of the exchanges. But the problem is I have so many kinds of coins that I don't feel like having that many wallets and managing that many private keys.
Never 😂
Ouch. You should. It's highly recommended.
Or you can upload them to a cloud service. Having them on a professionally run service might be for the best.