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.