The date I set was always "tomorrow". I've had so many tomorrow's, I can't even begin to count. Those promises to myself and to others of "tomorrow" almost always landed me in the emergency room, barely able to breathe, a number of times being told I was "lucky to be alive".
There won't always be the date you set. There won't always be tomorrow. In my life, there's only today. And I still struggle with that very fact.