Well done on the loss of weight.
It's possible that the new leaner you is less insulin resistant as this improves with falling body fat percentage, and that you may be able to tolerate slightly more carbs.
I can not really answer what exactly you should be eating, but I can offer some pointers to help you arrive at your own answers.
I believe your glucose monitor and your body should guide you.
As you do not need to lose any more weight, start by calculating what is the total number of calories you need in order to maintain your current weight. An app like myfitnesspal will help you to easily determine this.
You then you need to decide what percentage of these calories should come from each of the three main macronutrient sources i.e. Carbs, fats, and proteins. You can again use my fitnesspal to record your preference: current orthodox nutritional advice is probably for something like 50% carbs, 30% fats and 20% protein.
A lot of the people on this site have found it necessary to restrict their carbs in order to maintain good glycemic control. You should decide how much you need to restrict your carbs by trial and error based on your glucose counts. As this is zero sum gain, reducing your carbs and maintaining the same total number of calories means that you necessarily have to increase the calories you consume from the other two sources proteins or fats.
Increasing protein much above 20% starts being detrimental to kidney function, particularly for people with problems in this area. I believe I have read somewhere that we only need about 1 gram of protein per kilogram of body weight.
Which brings us to fat. The source of evil according to modern nutritional theory. Assuming that you do not have another medical condition to prevent you from doing do, many on this site have found it beneficial to replace the calories lost to carb reduction with fats. They claim that they have seen improvements not only in their glucose levels but in their lipid counts as well.
I am currently experimenting along similar lines myself. It is not that I am actually going out of my way to eat fat, it is that I will not try to avoid it in the same way I did a couple of months ago. So I now chose butter instead of margarine or other low fat spreads, full fat rather than reduced fat cheeses and other dairy, olive oil dressings in salads.
It's fair to say that I am currently hesitantly dipping my finger in his area rather than having taken the full plunge. Others on here go as far as fortifying their coffee with butter and coconut oil.
I guess I want to test the water first and see what my lipid counts are like in three months time before moving further in this direction.
You can then use myfitnesspal to keep truck of your daily food, total calories and the percentage of calories from each source.
If you prefer there is an online version of myfitnesspal at
www.myfittnesspal.com
I hope the above is of help.
Pavlos