so if you were thinking that the BTC price "will most likely stay above the $20K mark" above the $20K, why did you post "18882 EUR" in the thread?

I mean, I was doing the same things, but I'm still not sure, why?

I don't understand what you are trying to say here. 18,882 EUR is around $20,126 currently which implies that the price is above the $20K mark. No confusion here. I mentioned that my second prediction would be way more optimistic earlier.
Looks like I was thinking correctly back then because BTC has been rallying consistently in recent times.