I, too, am a "skilled blue collar worker" (even though my collar is actually a high-vis orange in color!).
For a time I pulled a salary that most graduate engineers would struggle to achieve:
- but it came at one hell of a price (i.e. twice in two years somebody on the job tried to kill me - and the high stress levels sent two of my "back to back" workers mad. One had to literally be bound in a straight jacket, and medivaced out to he Cairns Base Hospital in Northern Australia, where he was detained in the pyscho ward for three weeks).
Since giving that away, I have repeatedly been in the position where - despite my trade qualifications and extensive industry experience - lack of formal education proves to be a hinderance. As an experienced protection relay technician, I am able to sell a client a protection system, apply the settings, test the device and commission it. However, due to lack of formal advanced education, I am unable to advise a client what protection settings should be applied - leaving more than a few to ask "why did you bother to tender for the job in the first place?"
All I can say is, even if you already have trade qualifications and industry experience, there is still no such thing as "too much education."
Bill (Graduate of the University of Hard Knocks).