off topic but I know a woman who has 2 disabled (severely life-prohibiting ASD, non-verbal still in nappies aged 6+ sort of thing) and another child. Currently she's doing a counselling qualification and believes that she'll be able to open a low-cost counselling service for DV victims.
I really truly hope she and OP succeed. In terms of aforementioned woman I doubt it. She came into my head reading this, I am wondering how many people in general retrain and never gain any fruition from it?
Another question for the OP though, do you ever get to truly relax and unwind?