Sending €80 to a wallet, then deleting the wallet and anything to do with it.

Not backing up a wallet seed, with €5000 worth of coins and the USB it was on sh1t itself.

Not investing at €30 a coin because "they are too expensive and will fall again soon"

Probably buying €20k worth the other day, to see them at €330 today!

I am sure there will be more fcuk ups to come.