I would not think it is too late, if you have the talent. And if you have the talent, things are moving fast when you're 17. Without really having much knowledge about this, your current repertoire is not bad for playing under a year.
If you're lucky, you are not in school. I've been playing for one year and a month (just turned 18). I have a bad habit of not finishing pieces, but since I am in college (think: English) and is very much devoted to getting good grades, I do not practice much, let alone doing it efficiently. However, pieces like Liebestraum III, 104th Sonnet of Petrarch and Clair De Lune are still coming along. I've finished a few pieces like Fur Elise, Mozart's Fantasie in D-moll and Liszt's 3rd Consolation.
What I'm trying to say is, if you have the time to practice 4+ hours a day, and have the talent, you will get good, fast. At least be able to start at a conservatory in a few years (?). I certainly hope that will be a reality for me.
When I finish college in a year, I know I will not be going to a conservatory, I won't have the skills. I plan on going to a "Basic school of Music" (which can be compared to college when conservatory is compared to a university) and attend that for a year (it really stretches 3 years).
Do you have the chance to do something similar?
It really boils down to practice and talent. The better you get the more fun it will be, so don't give up, ever. Also, as someone above mentioned, networking is key.