I was the son who saw the enemy in his mother, also influenced by my narcissistic father.
I'll tell you how the story ended: I live with my mother, I take care of her, and I try to repay everything she did for me without asking me for anything in return, not even thanks.
Moral: give it time. Your heart will heal. Your son will come to his senses (I did). And regarding reinventing yourself professionally, you will have no problems, after overcoming so many things you are a survivor capable of adapting to any environment or labor market.