I left the Army with an Associates degree. Was lucky enough to be hired as a stock broker. That's really a sales position, but as I built a sales business, it became clear I wanted to run my own business. I took professional courses: got my Series 7 license; CFP designation; constantly improved my education. Began investigating RE partnerships in the due diligence arm; wound up becoming the president of our general partner in RE partnerships. When the RE market tanked in the late 80s, I went back and finished my undergrad; then, went to UT for my MBA.
I think the key is to keep working on your qualifications in the business in which you like. As you learn more and grow, opportunities will present themselves. Where preparation meets opportunity, one can excel in their chosen discipline. Some folks do it right out of school. I wasn't ready for that. The Army developed leadership skills and determination in me. Later, bringing that to bear on my area of interest, I was able to get where I wanted to go.
So, my advise is focus on an area. If you really like it, keep working on improving your skills in that area. Take a position that may not initially be what you want to do but will improve your skills and give you exposure to that area. At some point, you'll find a place where you want to be. I also did that in the Army: got my fixed wing, commercial instrument rating on my own at night; took officer development courses.
Best,
Dave