Hi Thach Le! :) Thank you so much for your kind words! :)
You are right, these numbers are pretty high, here is one of my favorite resources on it:
However, there are also other articles (https://www.discovermagazine.com/mind/the-70-000-thoughts-per-day-myth) claiming that the number is too high.
The point is that most of these thoughts are unconscious. So, we mainly think without even realizing, in fact, we think all the time, something is always crossing our mind, that’s why these numbers are so high.
I hope this helps :)