Wedding Anniversary count before the divorce paper signed?

Hi,
I was served in June 28th and our wedding anniversary was September 5th, that will be our 12th year anniversary, does that still apply to be eligible to get 50%of his retirement or social security or whatever liquid assets he owns?
Since he abandond my daughter and I I have a hard time getting the bills paid because he took his name off our joint accounts leaving me with the big bills under my name and ruined my credit,is there a way I can get him to pay the back bills or get any state help for mothers and children in a divorce.I was 6 months ago considered a stay at home mom,so what can I do now?
Thank you,
Annette