Krysty, your story began so similar to my own except it was our son and my teeth hurt just reading it because I thought "oh this poor girl has such a long journey ahead of her".
Poor girl NOT, you are miles ahead of where I was in the same situation. Today I live a happy, peaceful life and see the beauty in each day, even though my son is lost somewhere in his addiction. He knows where help is when he is ready, so each morning I say a prayer and just give his care to God, and then go about my day living well, as life was intended to be lived.
Hugs for you and prayers for your brother.