What habit turned your life around?

Was there something that you decided to implement into your routine that made a huge difference in how you get things done? I started waking up at 5am to workout. I thought it would be really hard, but I actually look forward to that quiet moment every morning now. It turned my workout routine around as well, as I have to get the workout done in that hour vs. when I would work out at other times in the day, I would have more time and get unfocused. I'm really glad I made this change for myself and have begun seeing results with my health and fitness.