Hey good Job on listening to the guys one here, and not seeing their advice as condescending. A lot of them can be a bit blunt. The s2000 is a fantastic car, but there are a ton of issues with owning it when you should be going off to college and stuff...

No back seat for hauling stuff, taking ur friends, super happy fun time with your girl.

If you want a cool car to get you through school and what not, I would highly suggest a 240sx or the subbie 2.5 rs. Love those 2.5s

If you really love the s2000. Save up ur money. Keep driving ur parents car or buy the cheapest car thats reliable. I went with a 91 ford festiva when I was your age. 900 bucks. Thing was a beast!!

Good luck with your purchase. Remember to take your time looking.