Hi Laura,
Enjoy the honeymoon - it's great
Just watch out for any changes. After I was diagnosed, I felt fine and had great results. Like you, I just tested at those four points every day and my results were perfect. But gradually I started to feel not quite so great and I couldn't understand why. An after meal test soon showed me! Before breakfast I was usually in the 5s and at lunch I was in the 4s, but my after breakfast test revealed a shocking (to me) spike of 13.3.
So maybe just do the very occasional after meal test just so you know all's still well? That's what I'd have done with hindsight.