Why do you stay @threesecrets?
It can't, surely, be love for each other as there just doesn't seem to be any.
There's compliance and tiptoeing on eggshells from you, whilst you do what you can to protect your daughter (but she's already being affected by the aggression and tension in her home).
There's anger, disrespect and dismissiveness from your husband to both of you - especially sad where your daughter is concerned as you should both (not just you) be positive role models for her.
How long will you be able to tolerate this situation you are all in? Which will be the stronger message for her, do you think?
Yours: "I've decided the one thing I can definitely do is to make sure that I am always using kind and positive language. "
His: "We still haven't discussed the time he called me and DD "deaf and congenitally stupid""
If it's a case of not knowing how you'd survive financially, maybe do some research as you'd at least know your options.
Check out your local Citizens Advice or Women's Aid (check online for contact details) and/or
Possible Benefits:
www.entitledto.co.uk
And
Child maintenance:
www.gov.uk/calculate-child-maintenance
And
Solicitor (Family Law/Relationships)
solicitors.lawsociety.org.uk/
Just put in your postcode to find a few local ones. Call and ask them for a typical quote and see if they'll give you an initial 30mins free. Or if there's someone you absolutely trust see if they can recommend a good solicitor.
Make an appointment and take as much financial information with you as you can, eg details of your/his salaries, pensions, savings, mortgage details, estimated value of house, etc. to maximise the value of your initial appointment.
DO NOT let your husband know you are making these enquiries as he's likely to make your life much more difficult in the interim.
You don't have to act on any of this information OP (though you should even "just" for your daughter's sake). But just knowing what to do when you can't take any more will help you I think.
Good luck. 🌹