Buy simple one time phone. NOT IPhone, NOT SmartPhone, Very simple phone without Internet Access.
Stop talking with your friends and relatives about your problems.
Stop everyday posting your posts and photos into social networks.
Call somebody who is in charge and totally reload all software on the all your phones, notebooks and computers, TV, freezers and so on.
Nowdayes the TV can have embedded camera and watch over you.
And with the software TV can send this video to everywhere.
All electronic devices, including devices of close relatives.
Thus you block leakage over phone, notebook and internet.
Call somebody who is in charge and check your home for the hidden cameras, microphones and so on.
Then... give different information about your nearest plans to every your friend and relative including closest ones.
Write these variants on the list and compare, what exactly knows your husband. Thus you block leakage of information via humans.