12K wasn't a bad call... It didn't stay too long at 20K... It was a couple of days at 17K, so I count that as ATH :)
btw, I have a funny story about the ATH... I had a friend that has been ignoring all my calls (and still does) to join crypto from the time BEFORE that.. (BTC around 1k, etc...)
And he decided to buy some BTC, and I have sold him some... at 17K 🤣
It is still a "running joke" when I chat with him... lol
When newspapers start to speak about BTC, people who have no clue about it will start to buy (like your friend). My daddy once told me that when that happens, it's high time to sell your asset....
You made a good deal there ;-)
It is always like that... when everyone is selling, you should buy, and when everyone is buying, it's time to sell :)