In hindsight do you think either your experience in the Navy directly or the GI bill benefits from service gave you a major leg up in life?
But history does not support experiments, so one cannot say whether something else would have been as profitable.
Staying married, going to college, living modestly, and working hard used to be the ticket.
These days, going to HVAC school or being an electrician or plumber might be preferred.
College seems to have become a dodgy choice, and one can always pick up coding on the side.