self-improvement books

I never read any books like How to be successful or How to build a good relationship before. In my view, the authors of these books were unbelievably arrogant. They are trying to teach others how you should live, what you should do. 
However, after suffering a two-year-long depression, I started to re-evaluate my view about these books. Suddenly, I found that I was the arrogant one who thought that no one has the right or capability to give life suggestions. Maybe no one is qualified enough to do this kind of job, but it doesn't matter. Everyone can share his or her experience, readers will find the value in it. I still haven't read any self-improvement books, i'm watching positive psychology lecture video instead.

life suggestion books

I've never read any books like How to be a successful man or How to build a good relationship before. In my view, the authors of books like these was are unbelievably arrogant. They are trying to teach others how you should live, what you should do.
However, after suffering a two-year-long depression, i I started to re-evaluate my view about these books. Suddenly, I found that I was the arrogant one, who thought that no one have has the right or capability to give life suggestions.  Maybe no one is qualified enough to do this these kinds of things, but it doesn't matter. Everyone can share his or her experiences, and readers will find the value in it. I still haven't read any life suggestion books. I'm watching [learing about?] positive psychology instead.

你的英文非常好。我了解你的文章，很清楚。只几个问题。一个建议，在美国，我们说“self-improvement" 或者 "self help" 的书.