How do you know when your marriage is over?

We’ve been married for a little over 4 years now and nothing has been easy.

We’ve always been terrible at communicating. He’s stubborn and thinks everything is my fault. He’s constantly throwing how it’s ‘his money’ in my face so I can’t leave (currently trying to find a job, been on atleast 10 interviewers)

We’ve tried marriage counseling, the first 2 sessions we went together, then the counselor asked me to come alone because she could tell I was on edge and I couldn’t be honest with my husband present.

My husband made it out to be that I’m ‘crazy’ and that’s why she wants to see my alone and every tiny once again is my fault.

I guess I already know my marriage is over. I guess I’m asking how do you move on and separate yourself from a gaslighting narcissistic prick?