For a marriage that long, you would be eligible for alimony - in my state it is one-third the length of your marriage and represents 40-45% of the marital income during that period. The fact that you are making nothing right now might end up playing in your favor - it certainly did for my ex who made next to nothing when we divorced.
You would still need to secure legal counsel, but I was able to put my retainer onto a credit card. Not sure that would be helpful in your case but it was in mine.