I was pretty much you at 29, except I had one kid and a husband in the military.
Honestly, very few people become wealthy in the military, as such it's on you, unless your husbamd comes out and works in civvy street as eventually mine did.
I'm the bigger bread winner, and that was more luck than planning, although I never stopped working, basically I started in sales, was good so got promoted, now with the same large corporation twenty years later and been promoted about 11 times. Before that I worked for a handful of smaller or crap companies in sales.
Find what you're good at, do it well, work for a company that has space to move up. Go for the big ones. You'll find when you're in they don't look at qualifications for promotion, more ability to do the job.
But you need to make certain decisions. If your husband is posted will you stay put? How will you manage child care if you're working?
And you do need to manage it, to be able to do the job and put in the hours, plenty of men have wives who manage the kids, so they can move up the career ladder unhindered. As women we seldom have that, but we need to still compete with these men to get the next promotion over them.
So it's not just what you'll do, but how you'll do it. There is tough challenges that will need to be met in the first few years, time apart from husband and children, juggling child care, after school clubs, to get your foot on the ladder, to compete.