ok, so. First, sorry your circumstances are as they are. Good that you found your way here.
I think your sitch needs to be processed a bit. The DUI really sux, especially the jail time. That is for sure? ie. Sentencing already brought forth by judge?
There is no reason why DBing can't work for you and possibly save your M... it will take effort... it will take time... and it simply will not be easy...
How old are you? Your wife? Your kids? How long have you been married? Together?
Not sure if you have read through the forums here and seen the "37 rules"? They would be worth looking at and keeping to while you are using LRT.
Your post begins your sitch at 3 years ago, losing your job. What was your life like prior to that? Did you think it was good? Great, even?
Does your W drink a lot as well? As long as you? Do you believe she may also have a drinking problem?
Start with that and others should be along to help support you as well.