You mentioned a 401(k) but I can't tell if it's the military's TSP. You could max that out in an aggressive fund like "I" or "S".
Perhaps you've already followed the debate on another part of this board over whether it was better to take the lowest mortgage rates in 40 years and invest it, or to take the more conservative "sleep at night" route. You sound like you're at your comfort level on paying off the mortgage early.
Hopefully you're fully funding a conventional or Roth IRA. There are more debates about which is better for $45K income, although rising income tends to shift the benefits toward a Roth. Perhaps you're eligible for other tax-deferred investments that can also be maxed out before other investments.
If anything "accelerated" my retirement, it certainly wasn't being a brilliant investor-- it was minimizing my expenses, mostly prolonged sea duty with good income and nowhere to spend it. OTOH your MOS and your current overseas duty selections probably make that a non-starter.
The next step, if you're not already doing it, might be reducing your expenses even further. As a single homeowner you're in an incredibly flexible position to cut way back without facing a family mutiny. If you haven't already, you might want to read old standbys like "Your Money or Your Life" by Joe Dominguez or the Terhorst's book mentioned at http://www.geocities.com/TheTropics/Shores/5315/
. After that you could plow through the Dollar Stretcher website (http://www.stretcher.com
) or Amy Dacyczyn's "Tightwad Gazette" book collection.
Since you claim "I don't really know too much of what I am doing with the finances thing" you could also read "Winning the Loser's Game" by Charles Ellis (http://www.amazon.com/exec/obidos/tg...87332?v=glance
), of course from your local library. It should be required reading before paying anything to any financial advisor.
But if the cash is burning a hole in your investment portfolio, try http://www.BerkshireHathaway.com
and Sandman's indexed FAQs at http://www.geocities.com/sandman_kmr3/
Hope this helps.