I am not for certain how it is in your state. I do know when my sister went to file for divorce, she was able to begin a lot of paperwork for support help as well, so all that was being processed at the same time divorce proceedings were being processed. She was able to get assistance because her husband had left the home and no longer resided under the same roof.
Like I said, it may be different where you live. But I hope it gives you a little bit to look up to and a step to take to the goal of supporting yourself.
For what it is worth (HUGS)