@ddon and @atl1943 , Ideally a renal dietician would provide a diet plan. I have Stage 3b CKD and inflammatory colitis and celiac, but my bloodwork on potassium, calcium, and phosphorus (salts) are all within bounds (partly because of a Mediterranean and GF diet plus exercise). Because of the "normals" the dietician was a bust, she said just stay hydrated. Hopefully you have better luck. Regarding eating out, I generally take my own food because of celiac. I ask what will be served and bring something similar. It is hard, because socializing over food is a big part of our culture. I sometimes also eat beforehand and just sample safe foods. Avoid high sugar and salt foods and simple carbs like chips and cookies, stay hydrated but not overhydration. If your level of salts is too high, then restrict foods on the Mediterranean or DASH diets such as potatoes, orange juice, and other foods high in potassium, phosphate, and such. If you search using "recipes for ckd and stage 2 diabetes" it gives some cooking options.
Staying active is also important; I can't do strenuous exercise now, but can still lift weights and mod. exercise. https://www.cdc.gov/diabetes/healthy-eating/diabetes-and-kidney-disease-food.html

@ddon @kayabbott gave you some great pointers! Visiting family like that is so good for you, but having to forego food that is not healthy can be a challenge. If you can, maybe have a small portion, very small! Opt for getting salads out on the table, and fresh veggies. If you are headed to someone's house, eat ahead of time so you may be less tempted to indulge in the bad stuff.

Often when we are at a potluck, I will put just a tiny bit on my plate, so the others know I am not forgoing the food. Maybe a bite or two. And usually that is enough for me. Can you try this?
Ginger