We don't always get what we want. In the same way, we don't always do the things we should do.
Rather, we get the things we must have and we do the things we must do.
When asked how they did it, the most successful people in the world admit "they had to do it".
On a macro level, people do remarkable things when their level of necessity is high.
On a micro level, many people wait until the last minute to get things done because this is when necessity is the highest.