Some how your pride is in the way. If you are feeling not safe and secure, you leave. You find a way and "Make it So.!" You find a counselor to help you get back your self esteem to be the woman you want to be.
Constantly living in fear is not healthy for you or your child only your husband because HE has you where he wants you under his thumb. He has you so you can't think for yourself and are afraid.
I just went to the hospital the other day and one of the questions they asked me was "Do you feel safe at home?" This is so they can get you help from the abuser. So there are ways to get away from him. Never let your thinking make you feel that you NEED a man as it never works. Work on you to be the best you can be. Happiness comes from you. No one else can do that for you.
Make a plan and get out! You have a child to raise and that child learns from what momma and dad do as to how to treat other people. If you want you son to be like dad stay put. I personally couldn't.
I think you know the answer and many of us have said what it is. Only you will know WHEN it is enough to leave. Let us hope that is sooner rather than later. Let us hope that you do survive and not come up dead or missing. Sorry to be so blunt but in this day and age it only takes a small thing to set someone off and you are gone permanently. So get into survivor mode and get out.
the other S.
Learning to live by yourself is not that hard to do. You will learn how to do so much more without having to answer to someone who does not want you to better yourself.