For the past seven years, Rosie Mattio has dedicated her free time to fitness. Six days a week, she wakes up at 4:30 to lift weights and go for a run, all while balancing time with her four daughters and work at her marketing company. In January, she decided to experiment with cannabis while training for a bodybuilding competition, and the results paid off. 40-year-old Mattio won her competition in Florida and told Insider she…