Overdosed at my best friend’s party, how do I fix things?

About a week ago I threw my best friend a birthday party for her 21st. I don’t remember much other than setting up for the party and a little bit of the beginning but from what I was told, about half way through people were looking for me. I was found unconscious in the bathroom, one of my other friends who was present had given me narcan and taken me to my best friends bedroom. When she came in the room she was crying and yelling at me telling me how I’m a horrible friend and how I don’t think of anyone but myself. I understand her frustration completely, sobriety is something I’ve struggled with ever since my overuse was brought to my attention. My question is how do I get my best friend back?