Glad to hear it. The tendency to add more and more exercises to a full-body routine is a common one. If you start to lose that "exhilarated" feeling that is most likely the reason.
Intensity will also increase as you get stronger and use more weight. You may find recovery taking a bit longer as a result.
I train 3-days per week and find the 2 consecutive days off at the end very welcome. However, I often do not have the best workouts after those two days off.
To get started, I took two days of rest between training days. I think I could cut that down to one day off between workouts and two on the weekend.
I've been lifting for all of my adult life. And yet, it feels like I am just a beginner. This is probably because, I'm still learning to make adjustments to accommodate the effects of being 75 years old. Even with excellent health, I cannot do what I could when I was in my 30's.