Hi Laura
Yes, you did so much and I am sure your brother knew it and loved you for it. I am a lung cancer survivor and please take my word for this, I knew the people who cared and the people who did not. Cancer is just a awful thing to have and most of the time there is just not a lot we can do. You have done it all, now remember him with a smile on your face. I'm sure he would like it that way.