Advice on things to do before upcoming divorce? Anything I might not have thought of?

My husband is Navy. In a week I will sign a notarized document, he will see a judge, and I will no longer have a military ID.. Meaning.. I will no longer have healthcare for my kids (he is not the biological), or money sent every month, etc. He's made such a big deal to get a divorce before July, when we would've been married a whole year (Texas wedding). This being the man who begged and Pleaded that we stay married when we separated. He said, and quote, "why screw us Both over$." Military men ...