I don’t know if they do it any more, but when I was a missionary for The Church of Jesus Christ of Latter-day Saints we did this thing called Companionship Inventory. It was a part of the weekly planning meeting for companionships that addressed the relationship and personal development. You can read it at the source here. It says:
Conduct companionship inventory. At the end of your weekly planning session, share with your companion appropriate goals, and ask for his or her help to accomplish them. Discuss the strength of your relationship with your companion. Discuss any challenges that may be keeping your companionship from working in unity or from being obedient. Resolve conflicts. Share with your companion what you think his or her strengths are. Ask for suggestions on how you can improve. If needed, set goals that will improve your relationship. Conclude with prayer.
When I got married, I knew that building a strong relationship was going to be important if we wanted to stay married. My wife and I have significant cultural overlap, but even just family cultures differ enough that most marriages (including ours) start off with a significant amount of conflict. We disagreed on all kinds of things from how to spend or save money to what to do in down time. (It didn’t help that she was experiencing the effects of bipolar disorder without either of us realizing it) It’s really easy, especially early in a union like that, to let the conflicts overwhelm you and just give up. And neither of us wanted to give up.
So I thought of companionship inventory. It has made a huge difference. We credit it with the strength of our relationship, and it is pretty much our main piece of advice to new (or any) married people. The only other advice we give is the same but more broad “communicate with each other”, this is just a specific action you can take to do that. And honestly, it’s the best action you can take because it has everything in it. It has conflict resolution, it points you both forward in the same direction by setting goals and asking for suggestions for improvement, it helps build each other other up with the discussion of each other’s strengths, and turns you toward God with the discussion of obedience and the focus on prayer.
I absolutely love my wife, and we work so well together, but I do not doubt that it would be a lot harder if we didn’t do this (most) every week. Try it out for a few weeks and see what it does for you.