But that's not exactly what this article is about. It's not about whether or not you've chosen the right career; it's about mistakes in general. Particularly, I got a lot from mistake 3: the advice to sell benefits, not features, is very good.
Hmm. You are right. Maybe my unconscious is trying to tell me something if I picked up two out of the list of 15 relating to career-limiting habits (#8 Forgetting who you work for; #11 Not blowing your own horn). But the economy is poor now (#12).