I feel alone

I'm very proud to have made it this far for the first time since I started drinking as a teenager. Everyone here is fantastic at supporting this journey but the people in my life are really just raging alcoholics. I just don't have any sober friends or family. Today I got invited to a bar by my supposed best friend. Her and her boyfriend drink daily and last time I went to lunch with her she ordered a drink in front of me. She knows I'm not drinking. I just don't know if I should isolate and cut her off. How do you all deal with the lack of support in your life?