Help- need advice fast- Hubby and I separated ove summer and need to decide to reconcile or quit.?

My hubby& I have married 10 years- in a nut shell we have 2 problems his anger and my money management. He was arrested because of his temper last summer-attented cles and in still to counseling. I have & am taking a Financial Peach University cl 14 weeks Dave Ramsey's teachings to help me manage my money better. He feels we should keed funds separate & I don't feel that a family can work together witl a money wall running down the midle-we have 5 kids and I realy don't want my marriage to break up. I can imagine my life with out my husband-(I'm 40 they always die before the women) even if was difficult but can't imagine it with my kids. We have some communication issues but are in counseling together working on it-Do you think its workable? Tax time is come up and I want to get my tax info out asap--I want to file single but married and HOH, claim the kids and day care, he gets the interest on the home. He did lie about the taxes last year, but we already worked that out.