Do you think everyone's parents taught them how to cook, pay taxes, look for places to live, and look for jobs? When your parents immigrated here, who taught them where to find a house or how to pay the taxes in this country?
Look, I know where you're coming from (I am also an immigrant from a former USSR country), but you'll only be more unhappy if you allow them to keep controlling your life like this.
OSAP: When it comes time to fill out the "How much taxes do your parents pay" section of the OSAP application, you can check a box that says "I don't have access to this information". OSAP will prompt you for a letter of explanation. Write one, and you'll be considered independently of them.
Other Money Stuff: There's a TD and an RBC near Laurier U. Get your own student banking account. If you're worried they'll find out, then put down a trusted friend's address instead of your own. If you're over 18 and have any credit at all (like a credit card?), you can take out a loan. I've got loans with both of these places.
Place to live: Join the UW student sublet group.
Job: If you have sufficiently high marks and enough time, you might still be able to transfer into a coop program. I'm not in science so I wouldn't know, but definitely talk to an academic adviser about this. CECA's resume workshops are available for free for all students. Otherwise, get a part time. The 24 hour tim hortons on Phillip is hiring right now. Live Switchboard (a small business on the university plaza) is LITERALLY ALWAYS looking for science tutors, and the guy who runs it is super nice.
Food/General Survival: Food Not Bombs (Kitchener) hands out fresh produce and fresh soups every Saturday at 1:30pm in front of Kitchener City Hall. They're like half of my weekly groceries, and all their food is entirely free (not to mention, just one bus ride away from the university). Otherwise, I rely on Waterloo's on-campus food bank for canned beans and meats and stuff. Once you move away from parents, you can also apply for emergency bursaries at the registrars office. Cooking is not really necessary if you can open a can and chop some veggies up. Heat up stuff on a pan - tada! Meal made.
I'm 19 now and I've been living entirely independently of my parents for 3 years. Simple things (like food, shelter) are a constant struggle, and I've got a small mountain of debt, but it feels so refreshing to be able to make my own decisions for myself. I never learned to drive (and probably will not have the means to until I'm in my 30s), I'll graduate with 50k - 70k debt, but at least I can say that these have all been my decisions. Leaving your parents house makes all the difference for your mental health :)
PM me if you have any more questions, or need more specific advice.