Mick
Good to have a new member here on this forum.
I have a few years yet before I retire altogether (probably) or go into semi retirement, either going into teaching the code (if I can find a job), or inspections. At your age, you might consider those, as have been suggested, or you might consider going to school taking a CAD course such as Microstation or AutoCad. Being in the design end of the electrical business, I grew up with both and have never taken a formal training course on either. There are many others here at work who are very willing to help me when I get stuck. Don't know where you are, but getting a job with an electrical contractor, or one of the larger design firms may require you to move. And as you know, as we get older, we are less inclined to do that. I am sure you will make the right decision, because only you know what your interest are.
Good luck, and if we on this board can be of any other assistance, just let us know.