Machine Gun Kelly decided to stop using drugs after his daughter confronted him about his substance abuse. The 34-year-old musician has been clean since August last year, and he has now revealed how his 15-year-old daughter Casie – who he has with ex Emma Cannon – started him on the road to sobriety when she was around 11 or 12. Appearing on the ‘Million Dollaz Worth of Game’ podcast, he said: “It started with my daughter saying, ‘Dad, you know I can tell when you’re high’ – it broke my heart. It was the ultimate let down.” The ‘Lonely Road’ singer admitted it took him “a while afterward” to m…