Go see several Lawyers, find one that is no nosense, and will tell you your an idiot if you want to fight for the sofa or the TV... and leave the emotions out of it they don't play any role.
You will need to gather paperwork, tax filings, titles, debt, etc...
up here its No fault divorce for the reason why doesn't matter, not sure if where you are if it makes any difference but find out.
I have been divorced twice. First time I was emotional and wanted things to work out. Which gave my ex 7-8 months to plan her escape and to cover her ass. I went to race the King of the Hammers and I came home to an empty house and no kids.
She created debt that I didn't know about, and I am sure she actually just tucked away the $ elsewhere, didn't matter it was "family debt" . I was on the hook for half of it and had to pay her out for my house (i owned for 5 years prior to meeting her), my tools and equipment. I also got screwed on the custody do to me not fighting the changes she had made to the normal routine to ones that worked for her while we tried " to work things out"
2nd divorce, I got the paperwork done and protected my assets ASAP. It saved me a lot of headache, stress and money.
and I got married again
and some of the things you are saying, I have heard again this go around 5 years in... so I am being proactive, while still hoping we can sort it out, but I am also a realist and been here before, go speak to a lawyer.