Excellent post. Like you, I enjoy working for myself. Content marketing, same as you. Ex-military just like you.
Probably, the military gave me the best grounding in work ethic (besides my dad). It's because of that that I am able to stay discliplined enough to work for myself. It's not for everyone, but it's made me happy.
RE: How to find your dream job. By not doing what others do!