The waiting sounds (to me at least) to be the hardest part. I hope your wait will be short.
If it's any consolation, sometimes the family of the donor are happy to know that at least a small part of their recently passed loved one is helping
another person that really needs it. My mother died young (41 years of age) but always carried a donor card. I forget which organ it was after all
these years (30+ years ago) but I think it was either a liver or a kidney. It felt nice to know that at least a small part of her was still walking
around somewhere.