Do not stop learning. Ever.
Seriously. Just because you graduated with a piece of paper doesn't mean you can stop studying. This is a fatal mistake.
Study the things that will make it easier and more effective for you to exchange with others.
Your diploma isn't worth a THING until you've actually delivered something - a product or service - to the world, which someone, somewhere is willing to pay for.
Until you've actually exchanged something with the world, you are of little use to it.
That is a cold hard fact, which you can either resist or embrace.
That sense of entitlement you might feel? That is what you need to work on. There is no such thing as a free lunch.