Yep. Lots of promising signs! But you still need to keep on top of things, keep aware, keep listening, keep making adjustments as necessary. You're probably a ways away from a "big sigh of relief."
That's one of the central tenets of a long-term relationship, I think, is
never getting too too complacent, never thinking that "well, we've been married for X number of years so that means we'll be together forever." It is certainly nice to feel comfortable and relaxed, and a relationship that is not comfortable and relaxed probably needs work, as you are doing. You don't want to be on tenterhooks all the time. But there is an opposite extreme, too, the feeling that you don't have to work at it any more. It's ALWAYS some measure of work, sometimes more, sometimes less, and the trick is to figure out what work needs to be done, whether it is worth it (is there
too much work necessary to make the relationship succeed?), and how to integrate that work into your life in a satisfactory way.
You are doing lots of good, mature things, congratulations to you for that.