This may not be the most popular opinion I'll ever write on this website, but sometimes, divorce is a good thing. It's not a decision anyone comes to lightly, but if you're spending more time thinking about the past than looking forward to the future, it might be time to give each other the gift of a fresh start.
And hey, maybe things got to the point that you were just toxic for each other. Maybe you were keeping things civil for the sake of your marriage and now that the ink on the divorce papers is dry, you can take the gloves off and really let each other have it.