My "secrets" are motivation and time. I was very motivated to change my diet and changed my life to make sure I had the time (and energy) to cook a real meal every day. I also treated it (almost obsessively) as a quest to improve my cooking skills (and probably taste too) to use as little processed additives as possible. On average I eat more than 500 gram of vegetables a day now and really enjoy it. Edit: I also only drink water and one cup of decaf coffee with almond milk a day.