I wouldn't tell them that bit about never drinking again - I would just say you felt your drinking was getting out of control and so you have stopped. If it were anybody but your parents, I wouldn't even say that. But for me, especially when I was younger, I found that when things were starting to go well I wanted to tell people about how I wasn't drinking and why. I enjoyed telling people. I can't explain it exactly, but that was really unhealthy for me. It became less about what I was doing for me, myself and I and it became more about everything external.