How to manage decreased kidney function? Please share.

Hello,
Has everyone had their health check-up?
It shows that kidney function has declined, and I am at a loss about how to manage it.
Every morning when I wake up and see my face swollen, I realize that my body isn't the same as it used to be.

It's really stressful every time I eat. I know I should eat blandly, but I often feel like eating something saltier because I have no appetite. When I dine out with my family, choosing the menu is the hardest part.
I am also feeling very tired. In the past, I worked hard and exercised, but these days I get tired quickly even with just a little movement. It's also difficult to work at the office because my concentration has decreased.

You must visit the hospital at least once a month. Waiting for the test results is the most nerve-wracking and frightening part. I'm always worried about what to do if the numbers get worse.
Is there a way to share my experiences and gain courage?