Welcome. The posters below have made some good points.
Man, I'm no professional, but it seems to me that you and your wife may have some other issues besides just the dip. I mean that sincerely, and I hope it doesn't come across as me being a jerk. I know a lot of guys who dipped for a long time while there wives absolutely despised the addiction. I was in that group. She hated it. She knew what it did. But would she leave me (or even threaten to do so) because of it? Not sure why, but hell no. Same goes for all of the other guys I knew.
I point out that observation for a few reasons. Quitting prompted me to change a whole bunch of things in my life. All for the better. I reevaluated a bunch of relationships and personal attitudes toward things. I hope that you can do the same thing.
If you are quitting because your wife is forcing you to, then your relationship with her is in jeopardy. Same goes for your children. You are going to have some tough mental battles during the next few months, and the addiction will lash out. Decide right now that you are quitting for YOU, because your life and health depend on it. Our families didn't make us addicts, so they shouldn't be the target of any rage that may happen. Bring it here. We can handle it.
Shoot me a PM if I can help you any way. Glad you're here.