Please, Pronte, for your wellbeing, make copies of every bank statement, credit card statement, and mortgage statement you can find and hide them or take them to someone you can trust to hold them for you. Or, assuming the UK postal system is similar, get yourself a post office box and mail them to yourself. Do this as quick as you can. Also, write down everything, in order, of what your husband has done. EVERYTHING. Leave nothing out. Mail that to yourself, too.
if you don’t have them, put passwords on all of your devices. Something he can’t decipher. Not pet’s names, children’s birthdates, best friends names….nothing he with which he would be familiar.
Find a solicitor and make an appointment as soon as possible, like yesterday. Collect all documentation and take with you to the solicitor’s appointment.
Try to remain as calm as possible when talking to the solicitor, though I know after all of this that your husband has done there is no way I wouldn’t be turning into Niagara Falls. Might want to take a box of tissues with you. 🙂
Not only is he a crook, he is abusive, maybe not physically, but verbally. It will only get worse. It does sound like you are afraid of him.
Please, you need to put yourself first. He certainly doesn’t. Forgiveness can only go so far. Good luck. 🩷 Thinking of you.