Have you ever made a mistake that resulted in the total or partial loss of your crypto assets?
Personally, like many people at the time, I stored my secret key in a file on my PC... which I accidentally deleted. I lost everything.

Have you had other similar experiences?
It would be nice to share our experiences to prevent others from falling into the same traps.

I never have such experience of deleting or losing my private key, but I had other experiences which I regretted after my actions.
My experience is related to airdrops; I participated in some airdrops and get rewarded; instead of me to sell off my coins, I hold them and they mostly dumped completely; I had this terrible experience in three several projects which I end up regretting.
I am always careful when making crypto transactions to avoid sending to a strange wallet different from the wallet address you are supposed to send.
When it comes into those regrets from airdrops then i have that nightmare on which i havent been able to secure profits on the time i do make $70k at least and waited up for me to cash out when its already $1k.

Even up to now I do still that being haunted with this kind of mistake on which I've been always thinking that if I was able to make out some secure profits on that time, then I might be able to have bought something
or I do have already some good amount of capital for adding up into my trade or simply buying up that Bitcoin on that time. It was particularly into those times where ICO is still that trend or the hype on that time.
Its the main trend on that time on which bounty hunting was still that profitable or getting up some huge bucks with less effort.
Speaking about losing up private keys too then I do have those experiences on which i have lost my PK on my ETH wallet when it was still that claimable into those faucets on which
this is one of the most regrettable things in my life.