Just a gut response and I hope this is not taken wrong. I usually trust my gut responses that spring out first.
"My wife and I have been married for 4 years"
I recall being married 4 years. Sort of, it was so long ago.
But I do recall the 7 year itch, the 10 year blahs, the 15 year slump, the 20 year god we've been together forever, and I have passed the 25 year mark as well.
4 years is not very long, you haven't really even been together long enough to reeeeeally experience some things. Sadly not everyone meshes though.
I do hope though that you and your wife consider it worth the effort to do some marriage courses. If nothing, the ability to talk in front of someone taking notes and not having a side will mean neither of you has the advantage.
And it will take more than 1 session and it will take more than 4 or 5 too.
It took me the accumulated meetings of several years at a session per month on average. But I was going at the expense of my disability pension and normal coverage typically Canadian. If it was coming out of my pocket, I would likely have seen to it we didn't ramble at our sessions as often
You need to keep talking to you finish saying all that needs to be said.