Earlier quoted context omitted.
I think if there's one big idea about nutrition, it should be that there are no one-size-fits-all answers. I skipped breakfast for most of my childhood, and I had no idea why I was so lethargic all the time. I was typically anxious from undone schoolwork, etc and had no appetite in the morning. I'd self-medicate with cigarettes. I started forcing myself to eat breakfast about a year ago and my mind is so much clearer…
That was also my case as an adult. Solved by eating much more at night, carbs included. I was just not consuming enough calories. So, another myth - carbs are bad at night - that did not apply to me.
After some rudimentary data science liberally using the glucometer, I can tell you what my body does after all types of simple sugars as well as some complex sugars... And my limit per day is around 10g carbs. I will change this up to reintroduce some foods I may not normally eat (like high fiber low carb bread, or Ryvita rye crisps).
When I was initially diagnosed, my fasting was 161mg/dL and a1c=7.1 . Now, my blood sugar when I wake up in the morning is around 85-105, which is normal. I've also lost 50 lbs