Thank you for your service.  I would suggest that you let the people who love your work do the advertising for you.  I say this because people will often buy as a recommendation from someone they know as opposed to someone they don't know.   Also if you let them tell your story of your hardship that may also cause people to buy.  Also follow the Amazon rule for whomever is advertising your products.  It's been said that you can buy whatever you want from Amazon within 3 clicks. If it takes more than that people may get a little impatient with buying something from you.  Hope this helps!