You can go to a homeless shelter because they offer food and shelter and if you are a women you can go to an all womens homeless shelter to feel safer. They can probably offer you some advice.
I feel like you are trying to save your dignity at this point by trying to not rely on anyone else, like any family members, friends, or coworkers (except I do understand the sex thing), but I think you need to go out and seek help. There are sometimes in life, where you need to rely on others and this is one of those times. Think of it this way, your life is on the line if you don't ask for help from anyone. Just do it.