Ok, first of all, I have no idea where that phrase comes from, "to turn over a new leaf," it just popped into my head and I used it, but it sounds strange to me now.
Today was the third day in a row that I've woken up before 8am. This may sound like no big deal, especially if you have a job, but for me, this is absurdly out of the ordinary. For the last few years I've been a night person, staying up until nearly dawn almost every day. At the same time, I've known that I do better work early in the morning, so I decided to make a change and it's permanent. Thank you for your warm welcome into the world of the working.