Find what interests you. Many other grad students are much younger than I am and will be entering a life's career following completion of their studies. Looking back, I think it's important to pursue your passion and let the career, money, etc., come from that. During studies, stay on top of things. At the same time, don't neglect other outlets, pursuits, interests: things have a way of connecting in unexpected ways.
Always ask for help. When in doubt, ask; When not in doubt, ask. Enrolment in graduate courses can be very small, and grad life can sometimes feel isolating; so, try to form great bonds with other grad students. You have a lot in common! Try to take some time off to have fun, and when you inevitably encounter students pulling a tractor in September, do the opposite of what I did; and be cool! If you can, participate in the 3-minute thesis competition (3MT); it's a lot of fun!
Figure out what motivates you, what you’re passionate about and what will drive you now and in the future. Start talking and engaging with people around campus. Go out of your way to get involved. It will pay off! The University of Guelph is full of passionate and interesting people and your attempts to connect with them can create opportunities you wouldn’t expect.
Words of advice for someone considering graduate school.
Do not hesitate to ask questions in all aspects of overseas study. Your peers, professors, graduate coordinators, and everyone you meet here would love to help.
I feel lucky to have been able to be involved in many different projects at the University of Guelph. My advice to future grad students is to get involved in as many different things as you can and to not be afraid to reach out to people. A lot of the fun in a graduate degree is being able to collaborate and work with lots of different people.