I started flying when I was 17 in high school as well. Started my private at a small part 91 flight school and then when I graduated went to Riddle to finish my flight traing and earn a degree. Did it cost a lot? Yes. Was it worth it? Absolutely! You do get what you pay for in my eyes. The training is fantastic, and will really prepare you for when you fly something faster and more complex than a 172. The classes that you take there also are great for helping you get prepared for a job in the professional aviation world.