Best weight loss plan

Hi I am new to this forum and would like to ask a question please. I was diagnosed with type 2 in July 2020. My weight at the time was 280. I immediately started taking 500 MG Metformin 2x a day, started taking blood glucose tests and cut all carbs and started walking again. For a year I stayed with that program and lost 92 lbs and my bs was consistently under 100 most times. In this time period I had three A1c tests come in at 6. But along the way I developed kidney stones that grew to big to pass. I had to have a stent for a month then they blasted the stone. I still have small stones. I also had two kidney infections and was told high protein may not be a good plan for me. I continued with the keto type diet until Thanksgiving 2021. My weight at the time was 182 and I felt great body wise. My SIL who is also type 2 joined us and told me that she pretty much ate carbs all the time and suffered no effects other than high or low bs. So I went off the rails and ate carbs again. Started slowly allowing forbidden foods but little by little my bad food habits took over. I felt fine but the weight came right back. I still monitored my bs and never seemed to go above 170 after a meal. No kidney issues during this time. I woke up about a month ago after realizing at 230 lbs my skinny clothes are back in the drawers and my unhealthy body is back making me feel bad about myself. I started a keto type diet again and felt good. I lost almost 20 lbs but my kidneys are acting up. Another infection. My long winded question is a high protein diet works for me but not my kidney. If I eat carbs I eventually lose control altogether. Does anyone know of a sugar-free eating plan that is not all high protein? I apologize for the length of this post. Thank you for your help.
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