Well done for reaching out - the realisation things are wrong and you need help is a brilliant first step.
I expect you're around the peri menopause stage - this can so often be the time when we stop putting up with shit things and develop an opinion.
Be very very careful - the moment of leaving or saying you're leaving can be the most dangerous.
Many men see women and children as things, property, can interpret leaving as them being deprived of things that are rightfully theirs - and can have extreme reactions.
The fact he says reading is rude because it doesn't involve anyone else is very telling - he believes you are a domestic appliance whose sole function is to centre him. He is wrong. It's not rude - it's essential and normal.
Please read up on coercive control - this Women's Aid site has a quick exit to a bland Wikipedia site, in case he sees you:
https://www.womensaid.org.uk/information-support/what-is-domestic-abuse/coercive-control/
A free half hour consult with a solicitor will give you a clear picture of your rights.
Even though you don't have a job, income, savings, pension etc the fact you are married means it's likely you are the equal owner of everything including the house if you have a mortgage, any savings and his pension.
Do not believe a word your husband will say on that subject.
And if he threatens to take the children (they do this not out of fatherly love but to control and frighten), remember you are the stay at home mum who gave up her chance of a career to be the home maker.
All the best. This site is full of women who've been there and made it out.