I work part time, 3 or 4 days a week with 8 hour shifts. Along with driving kids to school and home. Grocery shopping and taking my dog to the vet which is an hour away. I still managed to get from level 20 to 24 during my last two days off. It's possible and doesn't need you to be spending 8 hours alone in a dark room playing. I play two or three hours at a time, making sure to take breaks and catch up on my shows.