Hi Zodoga, welcome to the forum. Sounds like you've got a good plan for an exciting future. One thought, I just figured I'd throw your way, is a career where you are physically active doing exciting things might help with your PTSD. Being physically challenged means less time sitting at a desk.
Here in CA, local 3 operating engineers union is in desperate need of people. I'm told if you have a hard hat, they put you to work tomorrow. The job is a great career, retire after 30 years full benefits, a salary well over $100K a year. I know a lot of local 3 guys, and they are good people. You build things and repair things, and it's a good feeling being a part of something so productive.
While you might not be in CA, this type of work you may find rewarding. I only mention it, because everyone pushes white collar degree jobs and the market is flooded with young people with degrees, but often no jobs due to oversupply. Meanwhile, blue collar work needs people.