Your car appears to be a piece of shit.
But the rust doesn't look that bad, and it still runs, so get to work and fix the bitch. Some body work, paint, and a decent motor and it could be something. Don't give up on it for another cookie cutter ricer POS.
BTW, you're 18. You have no idea what your real capabilities are yet. Trust me, you don't want to learn the hard way. But you probably will, so I'll just save my breath for I-told-you-soes.