I'm going to try, because I think it would be good for me as well. I believe that although he states anxiety, there is some depression in there as well.
Often: I feel like I am worth nothing, unable to see me for who I am, and unable to have a self worth. This is diagnosed clinical depression.
Sometimes: I am able to have amazing conversations with others. This is me being a social person.
A lot of times: Those conversations are really good. Because even though I don't think I am very good at anything in THIS existence (meaning when I am depressed and sad); I am actually a really smart person and VERY good at what I do for a living.
Sometimes: I am very happy and good.
Sometimes: I am very very sad and not good.
I can have these conversations in both times, because it is innate to my being.
When I am happy: I could care less what you think about me and my ideas. I know with my entire being they are going to work.
When I am not happy: even telling me you disagree with a single idea is going to send me into a spiral of self depreciation.
I know how to handle this and get past it after years of dealing with it. But many don't. I wish for them, one thing, and that is help. I would never be who I am, where I am, if I did not reach out and tell the people around me what was actually going on in my head.