Divorce before entering the military or while in the miliraty

I have been married for three years Recently I declared my desire for a divorce and have begun gathering information to proceed. We are over our head in debt and my wife is not making any positive advancement toward a career path or education. I am done. I have contemplated filing bankruptcy but don't have the money to even review that scenario with an attorney. So I am planning on joining the Navy but I can't have an open civil suit. Here is the meat of my question, how long would it take to process a divorce, where there are no children involved, or if I wait until I am in the military, can I get a divcorce and what legal reprecussions would I face?