I'm 18 years old and I know nothing about my family history at all. The only thing I know is that I was born in Canada. Every time I ask my parents about it, they just shrug cause I guess they don't know either. I'll be in conversations with people and they'll say something about how they're part Irish, or maybe Venezuelan. If someone asks me about my origin, the only thing I know to say is that I'm white. It fucking sucks and I feel stupid not even knowing my own heritage.
Does anyone know where I could maybe find some of this information? I have a relatively common last name so I didn't have much luck with any family tree websites.
Does anyone know where I could maybe find some of this information? I have a relatively common last name so I didn't have much luck with any family tree websites.

Start with your parents. Ask their parent's names, dates of birth, then grandparents, and (if you're lucky) great-grandparents. If you do hit a brick wall then you're going to have to order birth, marriage or death certificates. You can generally only do this for one generation, though, as a birth certificate will have parent's name but not their date of birth.
For most people, they get back to grandparents, then hit the certificate route until they get back to 1900/1910. Then you can use census records (by far the most useful thing in all genealogy). If your family emigrated and were processed via Ellis Island, New York (many did, even those bound for Canada), those records are available online too.
My great uncle was Dandy Mckay, Scottish Mob boss that's trial came close to running J.F.K's election off the front papers while he was arrested in America after escaping prison.
Sometimes heritage isn't that amazing.