Clean and sober 12 years. Twelve years of your own hard work and dedication to yourself. Bravo!
Sometimes you have to realize that just because you are related by blood does not make someone your family. Sometimes they are just too toxic to have a relationship with. At that time, find other people to build true and meaningful relationships with, they don't have to be blood to be family.
No one can take this away from you. You did it. For you. Don't look to them to get you through it.
Well done!