Worried I shouldn’t donate

I (f36) am a blood match to donate my kidney to a friend (f42) who is in kidney failure and waiting on their second kidney transplant. Their first transplant was 12 years ago. I’m not very good friends with this person and known them about 3 years. She is kind and no one deserves to be on dialysis. However, I’m feeling worried about donating. Before knowing she had kidney problems we had hung out with our friend group and she has gotten black out drunk once and doesn’t amend her diet to be kidney healthy. I don’t know if this is me being too judgmental or if I should have real concerns in donating. I also don’t know if this is the right place to post this… any advice?