Yes, it is true that “man plans and G-d laughs’. At the same time, you and your spouse are in the same marriage. In the same car and you really ought to be going in the same direction. What do you want for your life, for your marriage.
Discuss that. You want to be ‘happy’; well, how do you define ‘happy’? What will you have to be doing to be happy? You want ‘peace’? ‘Success’? ‘Nachas from each other’? What will you each have to do to make that happen? What will you have to proactively not be doing?