There are many ways to characterize or explain why people who can describe a clear path to a better life have trouble following it. One way is to label it a deficit in executive function. To me it doesn't feel right to call it a deficit. I think of it as chronic interference with or co-option of the executive function by other factors. But either way, whether you think of it as weak executive function or a normal executive function overpowered by interference, the inmates are running the asylum, and your executive function is the asylum director cowering in his office mumbling, "I am in control. I told them to set the mattresses on fire; that was my idea."
The purpose of self-help writing is to put the executive function back in charge. For a lot of people, all they need is a brief reminder and a little injection of optimism, and a five-minute read like this blog post is useful for that. It's also important to grapple with the psychological factors that hijack your executive function in the first place, but if a few minutes of fluffy reading can do the trick for right now, there's no reason to say no to it.