Lori, people's metabolism differ -- so what I'm telling you might not be the gospel truth about carbs.
Abot 3 1/2 yrs ago my doc said: you have diabetes! Okayyy, it wasn't too bad.
The first thing I did was cut carbs. Much as I loved my sandwiches, that was the 1st thing I stopped eating, and my blood glucose plummeted. I found a dry, "expanded" type of crackerbread in my nearest shop, and that's my bread sub these days.
In the 1st months after diagnosis I avoided carbs as much as I can, and I lost (too quickly, please keep in mind) about 30 - 35 lbs. That was about 15/16 kilograms. Too much, too soon!

It showed in my face, and I had wrinkles (on my upper legs!!

I was not much overweight to start with.
My advice is: read labels.
About kidney problems: if you have always had perfect kidney function it should not change if you stay on a high protein diet.
I have my kidney and liver function tested (+ the other tests) every 4 - 6 months. I really eat an enormously high-protein diet. So far, kidneys fine.
The main thing is -- very low carbs and lots of protein and natural fats are wonderful for weight and blood glucose control.
But I should add: I buy masses of fresh veggies (not fruits, too much sugar) and I cook a fresh dinner every night. (Ohhh, who does not get tired of doing a large meal, everything freshly steamed/cooked/baked, every night?

)
So have blood tests done. Once you know your kidneys are okay, forget the doom-sayers and stay on a high-protein diet. Don't forget eggs and bacon for breakfast, or a lovely filled omelet!
** Oh: forget about low-fat and no-fat. I'm not sure where the fat phobia comes from. It had its origin in the 50's, but I'd need to do research on that!
But you simply
cannot go low-carb and also cut out fats, as you'll die of hunger. Eat the fats. It's all exaggerated. My forebears only had fats and lard -- oils were unheard of, and it did them no harm.