Are you sure you want to invest the money and not add it to your emergency fund? If you are living alone and paying your own tuition, you should have an emergency fund. If you are living with your parents and they are paying for school you don't really need one. There is no shame in living with your parents and having them pay for school.
If you want to invest, I would recommend that you invest in your TFSA. This way you will not be taxed on dividends and capital gains. You can open a self directed TFSA with RBC direct investing and buy whichever ETFs you want. Just make sure there are no other account charges associated with RBC Direct Investing. If you wanted a cheaper option, you could always use Questrade but if you are more comfortable with a big banks, using RBC is fine.