Here we go again! 3rd Kidney transplant...

I'm 46, with a failing 2nd transplant. It has lasted 16 years but now it's puttering out. My sister in law has offered to get tested. Hoping I can get a 3rd transplant and manage to skip dialysis. I'm a bit nervous to go through all this for the 3rd time though. Any words of encouragement would be great. Thanks all, I really appreciate this community.