OP I am so glad you came back.
I spoke some harsh words to you, they were deliberately harsh because I wanted to provoke you a little. Not to cause you pain, and I'm sorry if that was the case, but I hope you were a little angry towards me. Because anger can be such a useful emotion.
I think a PP mentioned it too.
In anger lies great strength, huge power , if you can find that anger and harness it it will give you the strength and courage to take the steps you need to.
I was in an abusive relationship that I struggled to leave, my self confidence was so low that it was really hard to get out. I came to believe that I was worthless.
Finding anger gave me the power to be brave and take the steps I needed.
I found it helpful to write down all my exs bad points, times he had abused me, times he put me down, his impatience, his dark sarcasm, his foul language.
Rather than wallow and feel sorry for myself I allowed some anger to build,then I thought "HOW FUCKING DARE HE!!" . Who the hell was he to treat me like shit, a servant and maid, washing his clothes while he was off fucking other women. I did this a few times, and over several weeks I felt stronger.
Don't wallow in self pity, don't feel sorry for yourself, get MAD. Get angry with me if it helps.
Many of us are angry with him on your behalf, join that chorus and become it's leader, be furious, for your sake, for your kid's sake.
Use anger to your advantage.