It was one thing to make a mistake; it was another thing to keep making it. I knew what happened when you let yourself get close to someone, when you started to believe they loved you: you'd be disappointed. Depend on someone, and you might as well admit you're going to be crushed, because when you really needed them, they wouldn't be there. Either that, or you'd confide in them and you added to their problems. All you ever really had was yourself, and that sort of sucked if you were less than reliable.
In magic - and in life - there is only the present moment, the now. You can't measure time the way you measure the distance between two points. 'Time' doesn't pass. We human beings have enormous difficulty in focusing on the present; we're always thinking about what we did, about how we could have done it better, about the consequences of our actions, and about why we didn't act as we should have. Or else we think about the future, about what we're going to do tomorrow, what precautions we should take, what dangers await us around the next corner, how to avoid what we don't want and how to get what we have always dreamed of.