I'm at the end of the road, where shall I go?

I'm currently 18, never had a job, and no money really saved. I'm about 6 months away from graduating and have plans on going to a University. My parents was going to buy me my dream G35 Coupe, but because I disrespected my mom one day from all the stress of not knowing whether or not I'll be admitted into the university of my choice, they told me they were going to cut me off. I no longer have a choice of which vehicle I get, I'll just be lucky to get one. They told me that they could buy me a car within the 10k-12k range or just give me the cash and whatever I find I get. Insurance, maintenance, etc., will be all me. I sincerely apologized but they don't think it's enough. To make a long story short, I disrespected my mom, entire family is pissed at me even though I apologized and was really sorry for it, considering to kick me out, and I don't know what to do. This is actually pretty serious because I'm in need of money and I'm going to need more of it as we speak. I was thinking about getting a job at Abercrombie & Fitch and hopefully get to be one of their models (5'11", 160lbs, athletic build, and handsome) but maybe that was just a thought of desperation. Any advice on what I can or need to do? Only serious answers please.