[Health Question] How can I improve without getting knee cartilage injections?

Because one of my family members has a knee problem,

I have to go to the hospital every few months.

The reason for going to the hospital is

It is for receiving a knee cartilage injection.

If the family doesn't agree with this,

My knee hurts so much that I can hardly work.

I am not good at living.

However, after receiving the cartilage injection

I'm getting a little better.

So, the family continues to receive cartilage injections.

It seems I need to rely on it.

Then, through eating habits or exercise,

Is there anyone who has had an improved experience?

I would appreciate it if you could let me know that method!