Realize that discipline is an illusion. While discipline is a common concept, it doesn’t actually exist. It’s not a thing you can actually do. Think about it: people say discipline is pushing yourself to do something you don’t want to do. But how do you do that? What skill is required? There isn’t a skill — it’s just forcing yourself to do something you don’t want to do. And that requires … some kind of motivation. Without motivation, you won’t be able to force yourself to do anything. So motivation is the key concept — and this is something that’s real, that you can actually learn how to do.