James, congrats on the progress!
Common wisdom is that diabetes is a progressive disease though more and more of us are providing examples to the contrary. Myself I never quite made it to full blown diabetes, my worst fasting blood glucose was only about 120 with >125 being what most consider the threshhold for T2DM. But in less than 2 years my fasting blood glucose is now mostly in the range of 70 to 85. Just 6 months ago it was still in the 90-100 range.
I think my dietary changes had the biggest impact but other efforts to exercise more, reduce stress, sleep better, fast & lose weight, etc. have each played a part. Perhaps the most important thing was learning that this is something I have control over and by tracking it and seeing progress I’ve been motivated to keep going. Since you are going farther your journey takes longer but it should continue being rewarding.