What's your biggest L in crypto?

Follow-up post to: What's your biggest W in crypto? : CryptoCurrency (reddit.com)

I'm looking for a reality check after past days' euphoria in the markets - what is your biggest loss, your biggest grief, whatever you wanna call it.

You bought at the top? How much did you lose before selling (if ever)? You bought into a shitcoin that dumped? Were you one step before buying bitcoin back in the day? What stopped you?

I'll start with mine: I managed to lose 30% of my portfolio trying to swing trade hype coins, before the coins pumped again, only to buy again and lose more money. I then decided that I'm not really cut out for daytrading.