Some people are good at time management, some people are bad at it, some people would be late to their own funerals. For something so important to leading a functional life, a disproportionate amount of people struggle at it. It makes me wonder.
If you went on the internet and looked for ways to make you better at managing your time, a tornado of self-help content would come flying at you. The prevailing idea is that time management is a matter of discipline, something anyone can achieve if only they try. If you are unable to manage your deadlines, maybe you're just lazy.
I think there is a lot to be said about a person's ability to work under pressure, and how not everyone can do it. The amount of mental exertion humans need to put themselves through to reach a rudimentary definition of success has changed rapidly in the last century or so, and I don't think it's natural for our minds to be pulled in so many directions. My evolutionary ancestors spent their time hunting, eating, and sleeping. Excuse me if I can't be on time for my 19th meeting this week.