Once you embark on your PhD or Masters...
The moment you are thinking about doing a PhD or Masters (advanced degree) it would be the moment you are blessed with wishful spirits to extend your cognitive (intellectual) capacity as well as mental capability (endurance, perseverance, resilience, etc). That moment is an indicator that you are embarking into the first out of the multilayersof complex suffering yet intriguing metacognitive processes.
Intellectuality and capacity will be tested...your relationship will be tested, in both with Allah and human beings.
Thus, it is a good path to uncover your strengths and weaknesses.