I think every child paints a picture of its world in its childhood. The difference between healthy people and people with a mental illness is that people with a mental illness painted too much in their childhood. So that the color ran out. 

That remains constant, the years go by. 

The healthy people always paint over their childhood picture because they still have color. The others, unfortunately not...

So it is much more about getting new colors, so you can paint over the picture from your childhood and not about changing yourself. Because deep down you're good as you are.