My student philosophy is that anyone can learn anything. However, to succeed and enjoy your graduate school education you need to create good relationships with your mentors and those you look up to and get involved in student life by joining things that resonate with you whether that be student councils, clubs, intramural teams, etc!
Smart or slow, doesn't really matter in the end, the point is everyone has their own time zone, all you have to have is your own balance of work, play, and all other stuff, the others don't really matter.
I recommend taking the time to thoroughly research potential graduate programs and supervisors to find one that is a great fit. It is important to work with a supervisor whose interests align with your own, as passion for your research will help you succeed in academia, especially when things get tough! If you are passionate about reproductive health and fertility, I wholeheartedly recommend the MBS program.
While it's true that you should work hard to reach your goal, burnout is real. Allow yourself to take breaks when needed; take a nap, play video games, and laugh at some memes. Life will feel less annoying.
Volunteering and trying out different career experiences is essential to knowing what you like/what you are good at. I often volunteer my time to entomological societies or writing blog posts for the public so I can gain more skills in scientific communication. Practicing your skills is what helps build them up.
Coming from New York City, Guelph was definitely different but I would say it was a relief. It truly grounded me to not be amongst the hustle and bustle every day and it's a small town full of nice people.
Guelph will provide you with a supportive and stimulating academic environment. My advisors provided me with the freedom to explore my research interests and the support and mentorship to help me become a better scientist. Their positive attitudes and confidence in my abilities allowed me to achieve success in my research goals. There are loads of clubs one could join (e.g. qualitative journal club, welfare and behavior group, dairy journal club, graduate student social committees, art clubs, etc.). In addition, my graduate program provided me with a safe and interactive social environment (e.g. intramural sports, city leagues, department socials).
For my non-native English-speaking friends, there is a plethora of support from the international office! In addition, the library provides lots of writing and technical support!