Well, have a read around the forum, there's loads of people here who have regained blood sugar control (type 2 diabetics and prediabetics alike), so... Maybe check out the Succes Stories section, and maybe read https://josekalsbeek.blogspot.com/2019/11/the-nutritional-thingy.html for a bit of a quick start guide.
Good on you for taking action early, and good luck!
Jo