There is no stock "off the shelf" marriage; every marriage is self-built, like Linux kernel 0.01.
You must learn to modify the source to fix problems that come up. There is no manual, and although there is a large user community, all of them have different systems, and consequently may give you bad advice. At least you have a co-author to help you.
Here is one piece of advice. Neither of you should play timesink online games, such as MMOs, unless you do it together or set clear boundaries about the times when you will play. Otherwise you or your wife will use those games to escape the marriage when it becomes difficult, and avoiding problems will make them worse.
can you explain this in a car analogy?
Get hold of portable property. -- Charles Dickens, "Great Expectations"