Half of us is easy, the other half is hard. Even though we do our best, we end up being scarred.
The thing is that the ego cannot cure itself of its own malady of egoism; it's already infected by the disease itself. And that is why it is necessary to go to a guru who knows God and by absorbing his consciousness into yourself, you discover that you aren't this ego. You cross that abyss and you find that you are infinite.