The real self
Many say the real self is pure and immortal. Yet I have heard the same people say that the decrepit and diseased self of an ailing old man is not the real self, nor is the undeveloped self of a new-born baby. Highly selective! It is just like the husband who regularly beats his wife and afterwards pleads for forgiveness claiming that "it was not the real me who beat you".
The fact is, you are what you do. Don't try to find yourself apart from change.