When chatting with a friend, he said that he learned a lot from many of my thinking models because I had read a lot of books.

I refuted this view. Let's call some of my existing small ideas thinking models. I don't think they come from books. Books are just a way to get information. If reading a book is like fishing, how much fish you can catch depends on the net, that is, the information screening system + past practical experience.

I think some of the unique ideas I have now mainly come from reviewing the past.

If there is one thing I always practice, it is "I examine myself three times a day". Every time I get a small feedback, I will often reflect on why I made such a decision, where the strong fear in my mind comes from, am I trying to help others or just for my own pleasure? And so on.

Repeated self-analysis helped me establish a good consistency between my subconscious and conscious mind, and basically said goodbye to cognitive dissonance. This is a very important factor in my ability to achieve a relatively calm state of mind.

If you want to become a better person, (my personal understanding) you should reflect more on what you have done/mistakes you have made. If you want to control the outside world, you must first control yourself.