I Am Concerned

Now, I grew up into an abusive (physically, mentally, verbally) home until I was about to turn 14 and as rescued by my dad and sent to Florida from colorado. It was all at the hands of my mother. I resented her for a year or two until I realized that she is my mother and one of us has to be mature about the situation. So I went to visit for Christmas time last year. She picked me up acting as if nothing happened in the past but when we got to her car I saw a missing mirror and it looked like her car got t-boned. She's always been a heavy drinker but it's gotten worse. My grandfather (her dad, my mom and brother love with him) said it was my fault. My mom falls asleep at the wheel and drives home drunk even more than she use to. She just got her motorcycle license, and I will not be surprised when I get the call that she was in a fatal accident because she was drunk or asleep. I will never have the perfect relationship with her even though all is forgiven. But I don't want her dead. I just don't know what to do anymore.