I've bought and begun reading the book mentioned in this article, and it seems like this article is simply a summary of the book - complete with intensive quotes (MOST of the article!)

I'm a little disappointed with the book so far - I'm extremely disappointed by this "article".

Another article on frustration tolerance.

Reading this has given me some good ideas to improve my frustration tolerance, like practicing low-stress skills like knitting and making music. It has also helped me to realize my frustration tolerance may be higher than I believe, though I do still feel the need to continue working to improve it.