People usually try to change by force. They promise: no more anger, no more sugar, no more lying. It works for a day. Then another self, one that never made the promise, takes the wheel. Page 9 explained why.
The tradition offers a different way, in three steps.
First, see it
You catch the self while it is happening, in ordinary life. Not afterward, in theory. Now, in the kitchen, in the car, in the middle of the argument. Page 21 teaches how.
Second, understand it
Later, in quiet, you go back to what you saw. You look at the self closely: what it thinks, what it feels, what it wants and what it fears. You understand it with your heart, not only your head. Page 30 teaches how.
Third, let it go
Understanding is necessary, but it is not enough. The books teach that a self is removed by a power greater than the personality, a power in your own deeper being. You ask, and it is taken. Page 31 teaches how.
The order matters. A self you have not seen cannot be understood. A self you have not understood keeps coming back, however hard you pray. And a self you only understand, without asking for it to go, tends to stay, now with a very good explanation for itself.
Until page 30, practice the first step. Each page until then shows you a self worth catching.