How do fats, protein, and post-meal walks affect fasting glucose, and CGMs help?

[JosephW]

I was diagnosed with type 2 diabetes six months ago, and while my A1C has improved with metformin, I'm struggling to get my fasting blood sugar consistently below 130 mg/dL. I've made significant diet changes, cutting out sugary drinks and most processed carbs, but I'm confused about the role of fat and protein in my meals and how they affect my glucose readings hours later. What are some practical, sustainable strategies for diabetes management that go beyond just counting carbs? I'm also wondering if adding a short walk after dinner would make a noticeable difference, or if I should be looking into a continuous glucose monitor to get better data on my personal trends.