You should not have remorse for anything you have done, because to isolate one's acts as being mean, or ugly, or evil is to place an unwarranted importance on the self. Well-being is a condition one has to groom, a condition one has to become acquainted with in order to seek it. You don't know what well-being is, because you have never experienced it. Well-being is an achievement one has to deliberately seek.
In order to accomplish the feat of making yourself miserable you have to work in a most intense fashion. It is absurd you have never realized you could work just the same in making yourself complete and strong. The trick is in what one emphasizes. We either make ourselves miserable, or we make ourselves strong. The amount of work is the same.