Well done. That was a big thing to do.
I had to keep my plans to myself, not give him any idea I was planning to leave. Because he would hide my things.
MN has a saying, getting your ducks in a row - if you want to leave, safely, there are things you want to do.
My number one was calling Women's Aid and they helped me three times, the second time they remained in support of me for ages. The first two times were for the one I had to keep it quiet from.
Make sure you have any passports and important paperwork for you, and if there's children, for them.
You're married, so you'll want at least copies of any financial information you are able to get - don't put yourself in danger to get this.
Your friends know - one of them would be more than likely happy to hold onto some things for you, so take anything important there. You can also slip a few things at a time there which are too big to hide at home. Suitcase of clothes and precious items etc.
Women's Aid can give you wonderful help and support. And if you don't have a friend or family member to flee to, they can help find a refuge til you're able to get your own place, if you feel you are in danger of harm.
If anything escalates please do call the police - you likely have grounds to speak to them on 101 if there's been abuse and any control or coercion. This will also help you with court (divorce, and if children, with their arrangements).
You've been very brave. And you can do this. You don't have to rush, but if you do feel in danger, call the police and flee.
Too many of us have been here. Hopefully more people will come along with info and moral support.