Being a graduate student at U of G is a wonderful opportunity. There is a fantastic support system here to help you progress and succeed in research, made up of faculty, support staff and other graduate students.
Sometimes as an undergrad it's easy to stay 'behind the scenes' and just go to classes and complete what's required of you. But grad school has SO much to offer, and there are opportunities to gain new experiences around every corner that contribute to both personal growth and look great on a CV. I think getting involved is so important, and creating new relationships with faculty/other students is key.
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.
Graduate studies are a great experience. In my experience, it was much more practical learning to equip you with skills to use in work settings. You also get to meet so many people who are in the same field and diversify your network.
I believe that one of the keys to success in terms of graduate studies and beyond is to be passionate about your work; this makes the dedication required to do well come that much easier.
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.
Get involved in the community. Grad school is more than your research project; expand your contributions beyond your field of research and into the community where you are working.
My best advice for prospective grad students would be to not be afraid to put yourself out there to the individuals you want to work with or those you believe to be the best sources of information. You are your best advocate! I would suggest doing as much research as possible on different graduate programs at various institutions, as well as the research being conducted to find the best fit for yourself. In my experience, asking current grad students how their experience was and how they achieved their goals was extremely helpful as they provided their authentic opinion.