Going to school is a good idea. In the mean time you should start appl ying for jobs... I know that is easier said than done and it is not easy to get a job, but the holidays are coming up so their should be lots of people hiring. Like Macy, Teavana, Starbucks, ect...
I also think you should move again... once again easier said than done. But New York is an expensive place and a dollar can get you a lot more nearly anywhere else in the country.
I for one, am proud of you for everything you have done. You got a way from your abusive husband, you quit your hooker job and I know you are enrolled in school. That's amazing!
If you cannot get a job, I would find something quick so you can get money. Even as a stripper, that way you will not be forced to have sex with anyone you do not want to have sex with.
So to sum up the best thing you can do right now, is find a job and/or move to a cheaper place. School will be good for you because you will have other, and more important things to do, like homework and grades, and thinking about the future. Best of luck to you!
Let me know if this helps. Email me at email@example.com