Ottawa's big "industries" are government, and hi-tech, and service sector jobs.
You need to be bilingual and a high security clearance for government, a degree in IT/ computer enineering for the hi-tech, and cooking experience / waiter experience for a decent service sector job. Stay in school, dude.
What I suggest you do is research some places you're interested in working (stores, restaurants) and just drop off your resume. A lot of times these places don't post on job sites and many times they use their own websites to list jobs. If you get a chance, try to pick up some French. It will make your resume look a lot better if you can say you're bilingual or can speak some French.