Any one here has divorced a narcissist ? [I Need Advice]

It’s been a difficult 22 years and then it turned into a nightmare when I finally left !
I finally realized that he classifies and a malignant narcissist
He doesn’t play by the rules
He steals
He cheats and he lies and the law doesn’t seem to know how to deal with him.
The Covid and the chaos has not been helping
I feel like I’m in war against the MOB!!!
Does anyone have any advice for me ?
I feel like I’m about to loose my mind .