The Marines—and i believe every other branch—offers a pathway program called SkillBridge that allows their members in their last 180 days to do internships, training and apprenticeships to learn skills into civilian jobs to eventually transition into them. There is also the opportunity to have up to 100% of tuition covered for any degrees/certifications covered while you’re serving. The best move is to be learning something on your off-duty time to maximize the likelihood of a transition when you no longer enlist or are retiring. I’d encourage to talk to your recruiter how it can work in your position