Very informative post. First of all I am so much interested about mind, brain and psychology. I am new in steemit. I have joined here to share my experience about my psychological problem and how I face it. 
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I want to add something with your post. It is my own story. I was a bullied child from my childhood. I had to listen all the negetive words from my parents and teachers. I was so frustrated on life. After some couple of years, I went to a meditation centre in my country. Theirs a seminar was held on power of words. After then I practiced to call postive sentence like " I am confident" when I go to sleep. Believe me, after couple of months I could see the difference. Now I am an successful entrepreneur. My life has changed