my advice, stop looking at cars for sale, and start figuring out what you want. not some vague idea, but an honest assessment of what it is you're wanting. 2 or 4 door, turbo or na, fwd/awd/rwd, euro/jap/us, etc, etc, etc
figure out what you're after then go find it. I know what car i'm going to buy when the accord craps out, so i'm saving up to get it. Its taken me a few years to figure out what car I wanted to buy when the time comes, and when I figured it out that was one less thing to worry about. if you just take some car because it kinda fits what you want and the price is right and your parents are wanting you to buy a car then you're going to regret it eventually. you won't love it the way you could and in the end it'll be a half hearted adventure.