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.

Secret key? You mean the recovery seed and private keys...

This topic doesn't fit in the trading discussion unless this is about people who made mistakes with their trades and wants to share it with the community.
If that's not the case then OP, you should move this to Bitcoin discussion or even off topic.
Hello. The goal is to start in a very open manner to gradually bring the discussion to bear on trading mistakes. That's why I chose this topic.
But if, as time goes on, it doesn't fit with the forum rules, I'll obviously change the topic.
Thank you.