I just got my tentative transplant date to donate a kidney to my cousin, who was born with a congenital kidney problem. He is 24 and has been on dialysis for about three years. He had one failed transplant (rejected) about a year and a half ago from a deceased donor. I'm really excited to be a match and so grateful that I can do this for him. Just wondering if anyone who has been through this has any practical advice or tips to share as the date gets close. Anything you wish you had known before?