Ten years ago, teenager Ezrah Waith was in a bustling nightclub on the Gold Coast's glitter strip, with lights flashing and music pumping, when he had an epiphany. Key points: The number of ex-drinkers rose from 1.5 to 1.9 million Australians between 2016 and 2019 Weight gain and hangovers were among the reasons for giving up alcohol Distillers are filling …