I was part of the military in the 80's and 90's. A female in the Navy. Not much really has changed, except for more hi-tech. The core of the military is strong, as well as its values. If joining the military, no matter what branch, is in the cards for you, GO for it. Be open minded and don't come to the table with a chip on your shoulder, because you are setting yourself up for failure from the get go.
I wish you the best in your endeavors. Stay strong and follow your gut!