When you have stressed your mind so hard, you will achieve the enlightenment - to be greatest and smartest of it. more than that, your capability to understand the minds of professors who have spent crucial time of their lives amassing knowledge through persistent research will increase.
you will become more receptive, more observant. your ability to mine the documents will increase phenomenally.

That’s why you need to work hard now, to observe and to be greatest academician and practitioner you possibly can become.

Work, Work hard.