I could only wish for all of us that this was a magical, overnight fix. 
Agree so strongly with how you have changed as I have as well…made my anxiety/depression even worse and am constantly not at ease. Don’t be hard on yourself, give yourself a break. Small steps such as not phoning him or asking friends/snooping on social media. Just this year in addition to the decision to go no contact, I had to change my phone number, she has been blocked from my Facebook page forever now but, I know she has other accounts. Possibly take this step by step instead of trying to take the whole issue on at once. You are taking control, forcing him to leave your home. It cuts us into a million pieces because we are no longer in control of their life. And there in lies the problem, they don’t want to be controlled, they want to have their cake and eat it too.
