Single mom help

So I got married right after high school been married nearly 7 years and me and my husband have a one year old and now we are talking about separating we are not sure if it will be temporary or forever but now I have to go take care of myself and my child all by myself and I have no car, no home, and I don't know where to start to get out on my own. I am staying with my brother but im ready to be on my own. Any tips on how to get on my feet?