I'm certain you got vague advice from the doctor's nurse who told you to not eat meat or only eat vegetables or other unclear instructions and you are now trying to figure it out because this is YOUR LIFE. Maybe your doctor didn't even tell you-you found out looking through your labs and asked some questions.
Now you have spent hours or weeks searching endlessly on the internet but all the info tells you different things - and you are not sure if you need to restrict more than protein and sodium.
So you decided to be safe and just eat the same boring food (maybe baked chicken and rice with green beans?) and now it's really getting old but you don't know what else to eat. You are stuck between a rock and a hard place - afraid to do anything that will increase your GFR.