I've thought about this for a while but having done a search, I see that the subject is even more complex than I first thought:
Here is a link on the subject to Autism Central, an NHS site:
https://www.autismcentral.nhs.uk/guidance/personal-care
There is some useful information here too (a PDF document):
https://ausm.org/wp-content/uploads/2025/07/Self-Care-Toolkit-for-Autistic-People.pdf
I think I've neglected most of the areas mentioned but one thing that particularly strikes me as a woman is not paying for services eg. some people pay to have hair removed, nails painted, go to beauticians, saunas etc.
I have never done this and it's as much as I can do quite often to cut my nails.
One of the reasons for me has been exhaustion from being overwhelmed by life.
I think there must be lots of reasons behind this but they all come down to the same thing: self neglect.
Do you feel that you neglect yourself or do you feel that your self care is good - physical, mental, spiritual etc etc?