Hi there,
I feel so sorry for you, you are surrounded by horrors. You are sensible enough to realise that you don’t want this lifestyle. I suspect that you have only lightly touched on what you go through living with your Parents. As a widow of an alcoholic, I know how bad things can get.
My advice is this: You are 32 years old, don’t waste anymore of your life being wrapped up with their problems. The effect that it has already had on you, must be devastating. You need to find a way to leave and live somewhere else.
I know that you say you can’t afford it, but there has to be a way??? Think hard………can you move in with a friend? Share a place with a friend? Get a job where you have accommodation included. I don’t know much about council housing but you could try and apply for a flat, as you are in distress….Do you have any family members that you could live with who are not drinkers?
Get out, save yourself, get as far away from all of them as possible. My hopes and prayers are with you.
Good luck.