May I also say thank you for your service.
I don’t know what your intentions/goals are, but if you want to move beyond power plant staff. I would recommend using your GI bill and finish your degree Thomas Edison State College, Will put together all your experience and you could have your BS in about 2 years.
While you will still need to work your way up through the ranks the people with degrees go farther faster (Generally speaking).
I did the plant route when I got out w/o the degree. Once I had degree in hand many doors were thrown open for me.
For a additional note I don’t do Nuclear anymore. Don’t get me wrong I would if the money was right but it is a great place to start.
Just a few helpful suggestions from and ex-ELT
NPS Orlando FL Class 8207
MM1/SS/ELT