Book (Practical) Religion, philosophy and self-development 「, how do I get rid of my bad 」?

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Religions, Philosophies, and Self-Development
「 Irritated by Trivial Matters 」 「 Moya Moya 」 No More! Don't you feel weak in your mind like this? If you are faced with a weak mental state, it is easy to overcome it. Even if you think that your mental state is weak, if you improve one by one, you can easily strengthen your mental state. How can you create a strong 」 that can overcome whatever happens? In this book, I will teach you how to create a strong 「 」 based on psychology, not just positive thinking based on the theory of guts. 「