Can you try to look at this separation agreement as a business arangement?
Try and have no emotion behind it.
Try and remember that many of the things he will say to you are said in anger, just validate and stay calm.
Remember this is temporary, this is between the two of you, not a judge.
I remember when my Husband dragged me off to see a Mediator.
I felt that this was the end, but I was given fantastic advice by Snodderly and my therapist and was told the very same thing I am telling you.
Do you have a therapist? Maybe seeing someone to help you with your unpredictable emotions may help you. I had to take an anti-depressant and an anti-anxiety medication to help me get through the first year.
There is nothing wrong with taking meds to help you to get through this difficult adjustment period.
One more thing, and I want you to understand I am not talking out of my arse, but when your Husband moves out, you will have a chance to actually work on yourself properly.
There can be no testimony without a test. I am praying to go through this test and come out the other end with a new and better marriage then before.