I agree with Lavendersage, Therapy has to be looked at as an option. For your own Mental Health, your business, your marriage and for your daughter these issues should be dealt with on a personal and family level.

You have done the hard part, you have admitted here how this situation has driven you to Depression and anger - near violence with a stranger. Now is the time to expand on that and work to resolve this together in a safe environment. That would be your first step to healing.

I am sorry about your business and work situation, but with the other issues cleared from your mind maybe your Professional life will take an upturn.

Dave.