What do PJs do after the military? I’m not sure what I would do and worried it will be difficult to find a job.

Lots of PJs go the officer route and specialize just like I am doing into an MD or PA program. Or you can do contracting, get a degree in whatever you like with the military paying for your education. Another option for you could just be to go the Guard or Reserve route where you would have to take a hiatus from your job while you are in training but will be able to work a normal civilian job once you are done with training.