Absolutely take the time to reach out to current students, alumni, and faculty members affiliated with the grad programs of consideration. Your grad school experience will very much be influenced by the people you are surrounded by during your education and the culture of the program. Hearing from other's experiences and talking to current students is one of the best ways to find the right fit for you.
Be patient with yourself. As a student your job is to learn, and by necessity, fail. Solving the problem and having the right answer isn't always the same thing.
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.
“I like the fact that you can go out to the Arboretum and walk during lunch. The flowers and the trees provide such a beautiful and serene outlook to the campus. I like how the buildings are not congested into one area but are separated by trees and pathways.”
Although I think most prospective grad students have been told about the importance of picking a study/project that interests you, I think it's also really important to take some time to see how you interact with your supervisor and lab. These will be the people you work the closest with for the next several years, and help provide support to you in some of your toughest moments.
Pursue research that you are passionate about and that inspires you. Graduate studies are a lot of work and can be difficult, and if you're not passionate about your research then you probably won't enjoy it. That being said, don't be afraid to step out of your comfort zone and experience new things, whether that be academically or personally. Also, don't be afraid to get involved, some of my greatest experiences at the University of Guelph have been outside of the classroom.
I would advise a prospective graduate student to do their homework before contacting prospective advisors. Check out their profile on the University website, read their most recent paper, and even reach out to a senior graduate student currently in the lab!