I'm in this situation too, hanging on to my job (as a teacher) by the skin of my teeth. My employer has been as flexible as possible, which is not easy in my field. Trying to advocate for a child with SEND in mainstream education because there are no suitable specialist school places, and having to be the driver that ensures school and local authority fulfil statutory duties and deliver some kind of suitable provision for my child is like another job. Managing appointments and assessments, and routinely completing more paperwork than I've done for anything, ever, bar a postgraduate professional qualification, takes up an inordinate amount of time, at crunch-points such as leading up to key transitions, hours every week. This isn't me being 'precious' about my child's provision, it's just that if I didn't put this work in, the flimsy structures put in place to support DD would grind to a halt, she wouldn't cope in school and I would need to leave work to non-electively home educate.
Working in education I see families all the time who just don't have the resources ‐knowledge, time, finances‐ to engage 'the system' and embark on the long hard slog of getting their child's needs recognised and supported in education. Because left to their own devices, schools won't necessarily do it ‐there's no money in the system. And it's invariably women, mothers, who bear the brunt of this institutionalised, systemic oversight.
I'm on various online forums and groups pertaining to my child's specific needs, and the other members are almost exclusively women, pretty much all of whom are in this same precarious position of seriously having to consider surrendering careers and financial independence because there just isn't enough support in the system to care for vulnerable children.