I've always had this sense of entitlement. This thought that I deserved to have certain things. After all I always learned if you work hard you get results.
That is sometimes true. And it's good to work hard. But you shouldn't depend on it as truth.
Because one day, You're going to be waiting for your acceptance letter. And instead get an email saying you didn't get the appointment. And if you're used to getting what you want. That's going to hurt.