I have a low GPA even though I studied very hard for my exams. Could this possibly mean that I am not intellectually cut out for entrepreneurship since I can't even perform well in exams and academics?
Studying hard indicates a good work ethic which will help with your entrepreneurial efforts.
Do a search on dyslexic millionaires and you will see people like Richard Branson, Steve Jobs, and Steven Spielberg on that list. My guess is they also had low GPAs.